Significant enhancement in high-temperature tensile strength of trace nano-Y

In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb...
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Autor*in:	Yue, Hangyu [verfasserIn] Peng, Hui [verfasserIn] Miao, Kesong [verfasserIn] Gao, Boyang [verfasserIn] Wu, Hao [verfasserIn] Yang, Jibang [verfasserIn] Fan, Guohua [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties

Übergeordnetes Werk:	Enthalten in: Materials science and engineering / A - Amsterdam : Elsevier, 1988, 875
Übergeordnetes Werk:	volume:875

DOI / URN:	10.1016/j.msea.2023.145086

Katalog-ID:	ELV009884173

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245	1	0	\|a Significant enhancement in high-temperature tensile strength of trace nano-Y
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520			\|a In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys.
650		4	\|a TiAl alloy
650		4	\|a Selective electron beam melting
650		4	\|a Y
650		4	\|a Microstructure
650		4	\|a Mechanical properties
700	1		\|a Peng, Hui \|e verfasserin \|4 aut
700	1		\|a Miao, Kesong \|e verfasserin \|0 (orcid)0000-0003-2340-3964 \|4 aut
700	1		\|a Gao, Boyang \|e verfasserin \|0 (orcid)0000-0002-1907-841X \|4 aut
700	1		\|a Wu, Hao \|e verfasserin \|4 aut
700	1		\|a Yang, Jibang \|e verfasserin \|4 aut
700	1		\|a Fan, Guohua \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Materials science and engineering / A \|d Amsterdam : Elsevier, 1988 \|g 875 \|h Online-Ressource \|w (DE-627)320500497 \|w (DE-600)2012154-4 \|w (DE-576)095299947 \|x 1873-4936 \|7 nnns
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matchkey_str	article:18734936:2023----::infcnehneetniheprtrtniet
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publishDate	2023
allfields	10.1016/j.msea.2023.145086 doi (DE-627)ELV009884173 (ELSEVIER)S0921-5093(23)00510-5 DE-627 ger DE-627 rda eng 600 670 530 VZ 51.00 bkl Yue, Hangyu verfasserin aut Significant enhancement in high-temperature tensile strength of trace nano-Y 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys. TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties Peng, Hui verfasserin aut Miao, Kesong verfasserin (orcid)0000-0003-2340-3964 aut Gao, Boyang verfasserin (orcid)0000-0002-1907-841X aut Wu, Hao verfasserin aut Yang, Jibang verfasserin aut Fan, Guohua verfasserin aut Enthalten in Materials science and engineering / A Amsterdam : Elsevier, 1988 875 Online-Ressource (DE-627)320500497 (DE-600)2012154-4 (DE-576)095299947 1873-4936 nnns volume:875 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ AR 875
spelling	10.1016/j.msea.2023.145086 doi (DE-627)ELV009884173 (ELSEVIER)S0921-5093(23)00510-5 DE-627 ger DE-627 rda eng 600 670 530 VZ 51.00 bkl Yue, Hangyu verfasserin aut Significant enhancement in high-temperature tensile strength of trace nano-Y 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys. TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties Peng, Hui verfasserin aut Miao, Kesong verfasserin (orcid)0000-0003-2340-3964 aut Gao, Boyang verfasserin (orcid)0000-0002-1907-841X aut Wu, Hao verfasserin aut Yang, Jibang verfasserin aut Fan, Guohua verfasserin aut Enthalten in Materials science and engineering / A Amsterdam : Elsevier, 1988 875 Online-Ressource (DE-627)320500497 (DE-600)2012154-4 (DE-576)095299947 1873-4936 nnns volume:875 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ AR 875
allfields_unstemmed	10.1016/j.msea.2023.145086 doi (DE-627)ELV009884173 (ELSEVIER)S0921-5093(23)00510-5 DE-627 ger DE-627 rda eng 600 670 530 VZ 51.00 bkl Yue, Hangyu verfasserin aut Significant enhancement in high-temperature tensile strength of trace nano-Y 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys. TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties Peng, Hui verfasserin aut Miao, Kesong verfasserin (orcid)0000-0003-2340-3964 aut Gao, Boyang verfasserin (orcid)0000-0002-1907-841X aut Wu, Hao verfasserin aut Yang, Jibang verfasserin aut Fan, Guohua verfasserin aut Enthalten in Materials science and engineering / A Amsterdam : Elsevier, 1988 875 Online-Ressource (DE-627)320500497 (DE-600)2012154-4 (DE-576)095299947 1873-4936 nnns volume:875 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ AR 875
allfieldsGer	10.1016/j.msea.2023.145086 doi (DE-627)ELV009884173 (ELSEVIER)S0921-5093(23)00510-5 DE-627 ger DE-627 rda eng 600 670 530 VZ 51.00 bkl Yue, Hangyu verfasserin aut Significant enhancement in high-temperature tensile strength of trace nano-Y 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys. TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties Peng, Hui verfasserin aut Miao, Kesong verfasserin (orcid)0000-0003-2340-3964 aut Gao, Boyang verfasserin (orcid)0000-0002-1907-841X aut Wu, Hao verfasserin aut Yang, Jibang verfasserin aut Fan, Guohua verfasserin aut Enthalten in Materials science and engineering / A Amsterdam : Elsevier, 1988 875 Online-Ressource (DE-627)320500497 (DE-600)2012154-4 (DE-576)095299947 1873-4936 nnns volume:875 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ AR 875
allfieldsSound	10.1016/j.msea.2023.145086 doi (DE-627)ELV009884173 (ELSEVIER)S0921-5093(23)00510-5 DE-627 ger DE-627 rda eng 600 670 530 VZ 51.00 bkl Yue, Hangyu verfasserin aut Significant enhancement in high-temperature tensile strength of trace nano-Y 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys. TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties Peng, Hui verfasserin aut Miao, Kesong verfasserin (orcid)0000-0003-2340-3964 aut Gao, Boyang verfasserin (orcid)0000-0002-1907-841X aut Wu, Hao verfasserin aut Yang, Jibang verfasserin aut Fan, Guohua verfasserin aut Enthalten in Materials science and engineering / A Amsterdam : Elsevier, 1988 875 Online-Ressource (DE-627)320500497 (DE-600)2012154-4 (DE-576)095299947 1873-4936 nnns volume:875 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 51.00 Werkstoffkunde: Allgemeines VZ AR 875
language	English
source	Enthalten in Materials science and engineering / A 875 volume:875
sourceStr	Enthalten in Materials science and engineering / A 875 volume:875
format_phy_str_mv	Article
bklname	Werkstoffkunde: Allgemeines
institution	findex.gbv.de
topic_facet	TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties
dewey-raw	600
isfreeaccess_bool	false
container_title	Materials science and engineering / A
authorswithroles_txt_mv	Yue, Hangyu @@aut@@ Peng, Hui @@aut@@ Miao, Kesong @@aut@@ Gao, Boyang @@aut@@ Wu, Hao @@aut@@ Yang, Jibang @@aut@@ Fan, Guohua @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320500497
dewey-sort	3600
id	ELV009884173
language_de	englisch
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The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. 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author	Yue, Hangyu
spellingShingle	Yue, Hangyu ddc 600 bkl 51.00 misc TiAl alloy misc Selective electron beam melting misc Y misc Microstructure misc Mechanical properties Significant enhancement in high-temperature tensile strength of trace nano-Y
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topic_title	600 670 530 VZ 51.00 bkl Significant enhancement in high-temperature tensile strength of trace nano-Y TiAl alloy Selective electron beam melting Y Microstructure Mechanical properties
topic	ddc 600 bkl 51.00 misc TiAl alloy misc Selective electron beam melting misc Y misc Microstructure misc Mechanical properties
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title	Significant enhancement in high-temperature tensile strength of trace nano-Y
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title_full	Significant enhancement in high-temperature tensile strength of trace nano-Y
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title_sort	significant enhancement in high-temperature tensile strength of trace nano-y
title_auth	Significant enhancement in high-temperature tensile strength of trace nano-Y
abstract	In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys.
abstractGer	In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys.
abstract_unstemmed	In this study, the effect of 0.2 wt% Y2O3 nanoparticles addition on the microstructure and elevated-temperature tensile properties of TiAl alloy prepared by selective electron beam melting (SEBM) were investigated. The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. These findings provided us an important reference for enhancing high-temperature mechanical properties of TiAl alloys.
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title_short	Significant enhancement in high-temperature tensile strength of trace nano-Y
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author2	Peng, Hui Miao, Kesong Gao, Boyang Wu, Hao Yang, Jibang Fan, Guohua
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doi_str	10.1016/j.msea.2023.145086
up_date	2024-07-07T00:41:11.460Z
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The results indicated that the microstructures of Ti–48Al–2Cr–2Nb and Ti–48Al–2Cr–2Nb–0.2Y2O3 alloys were similar, except for the homogeneous distribution of Y2O3 nanoparticles, which were mainly composed of equiaxed γ, blocky B2, and a few (α2/γ) lamellar colonies. The nano-Y2O3 particles induced a large number of dislocations and twins around the reinforcing particles due to the thermal mismatch caused by rapid heating and cooling during SEBM layer-by-layer fabrication, and the density of geometrically necessary dislocations increased from 5.70 × 1013 to 4.92 × 1014 m−2. The high-temperature ultimate tensile strength increased significantly from 539 ± 2 MPa to 680 ± 3 MPa at 750 °C. The fracture elongation of Ti-48Al-2Cr-2Nb (66 ± 3%) was much larger than that of Ti-48Al-2Cr-2Nb-0.2Y2O3 (19 ± 1%) when tested at 750 °C. The ultimate tensile strength and fracture elongation of Ti-48Al-2Cr-2Nb-0.2Y2O3 were 539 ± 6 MPa and 56 ± 1%, respectively, when tested at 800 °C. Finally, the strengthening mechanism attributed to the added Y2O3 nanoparticles was discussed. 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Significant enhancement in high-temperature tensile strength of trace nano-Y

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