Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy
Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ...
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Gespeichert in:
| Autor*in: |
Zhou, Weiyang [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© International Institute of Welding 2021 |
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| Übergeordnetes Werk: |
Enthalten in: Welding in the world - Springer Berlin Heidelberg, 1963, 65(2021), 12 vom: 02. Okt., Seite 2309-2318 |
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| Übergeordnetes Werk: |
volume:65 ; year:2021 ; number:12 ; day:02 ; month:10 ; pages:2309-2318 |
| Links: |
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| DOI / URN: |
10.1007/s40194-021-01184-2 |
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| Katalog-ID: |
OLC2077365013 |
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| 520 | |a Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. | ||
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10.1007/s40194-021-01184-2 doi (DE-627)OLC2077365013 (DE-He213)s40194-021-01184-2-p DE-627 ger DE-627 rakwb eng 670 VZ 600 620 VZ Zhou, Weiyang verfasserin (orcid)0000-0002-7216-7155 aut Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © International Institute of Welding 2021 Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. ZLa22 alloy GTAW Welding current FZ Microstructures Tensile strength Le, Qichi aut Guo, Ruizhen aut Ren, Liang aut Chen, Liang aut Chen, Xingrui aut Huang, Xuqiang aut Enthalten in Welding in the world Springer Berlin Heidelberg, 1963 65(2021), 12 vom: 02. Okt., Seite 2309-2318 (DE-627)129377309 (DE-600)164108-6 (DE-576)014759330 0043-2288 nnns volume:65 year:2021 number:12 day:02 month:10 pages:2309-2318 https://doi.org/10.1007/s40194-021-01184-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_267 GBV_ILN_2018 AR 65 2021 12 02 10 2309-2318 |
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10.1007/s40194-021-01184-2 doi (DE-627)OLC2077365013 (DE-He213)s40194-021-01184-2-p DE-627 ger DE-627 rakwb eng 670 VZ 600 620 VZ Zhou, Weiyang verfasserin (orcid)0000-0002-7216-7155 aut Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © International Institute of Welding 2021 Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. ZLa22 alloy GTAW Welding current FZ Microstructures Tensile strength Le, Qichi aut Guo, Ruizhen aut Ren, Liang aut Chen, Liang aut Chen, Xingrui aut Huang, Xuqiang aut Enthalten in Welding in the world Springer Berlin Heidelberg, 1963 65(2021), 12 vom: 02. Okt., Seite 2309-2318 (DE-627)129377309 (DE-600)164108-6 (DE-576)014759330 0043-2288 nnns volume:65 year:2021 number:12 day:02 month:10 pages:2309-2318 https://doi.org/10.1007/s40194-021-01184-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_267 GBV_ILN_2018 AR 65 2021 12 02 10 2309-2318 |
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10.1007/s40194-021-01184-2 doi (DE-627)OLC2077365013 (DE-He213)s40194-021-01184-2-p DE-627 ger DE-627 rakwb eng 670 VZ 600 620 VZ Zhou, Weiyang verfasserin (orcid)0000-0002-7216-7155 aut Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © International Institute of Welding 2021 Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. ZLa22 alloy GTAW Welding current FZ Microstructures Tensile strength Le, Qichi aut Guo, Ruizhen aut Ren, Liang aut Chen, Liang aut Chen, Xingrui aut Huang, Xuqiang aut Enthalten in Welding in the world Springer Berlin Heidelberg, 1963 65(2021), 12 vom: 02. Okt., Seite 2309-2318 (DE-627)129377309 (DE-600)164108-6 (DE-576)014759330 0043-2288 nnns volume:65 year:2021 number:12 day:02 month:10 pages:2309-2318 https://doi.org/10.1007/s40194-021-01184-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_267 GBV_ILN_2018 AR 65 2021 12 02 10 2309-2318 |
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10.1007/s40194-021-01184-2 doi (DE-627)OLC2077365013 (DE-He213)s40194-021-01184-2-p DE-627 ger DE-627 rakwb eng 670 VZ 600 620 VZ Zhou, Weiyang verfasserin (orcid)0000-0002-7216-7155 aut Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © International Institute of Welding 2021 Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. ZLa22 alloy GTAW Welding current FZ Microstructures Tensile strength Le, Qichi aut Guo, Ruizhen aut Ren, Liang aut Chen, Liang aut Chen, Xingrui aut Huang, Xuqiang aut Enthalten in Welding in the world Springer Berlin Heidelberg, 1963 65(2021), 12 vom: 02. Okt., Seite 2309-2318 (DE-627)129377309 (DE-600)164108-6 (DE-576)014759330 0043-2288 nnns volume:65 year:2021 number:12 day:02 month:10 pages:2309-2318 https://doi.org/10.1007/s40194-021-01184-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_267 GBV_ILN_2018 AR 65 2021 12 02 10 2309-2318 |
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10.1007/s40194-021-01184-2 doi (DE-627)OLC2077365013 (DE-He213)s40194-021-01184-2-p DE-627 ger DE-627 rakwb eng 670 VZ 600 620 VZ Zhou, Weiyang verfasserin (orcid)0000-0002-7216-7155 aut Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy 2021 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © International Institute of Welding 2021 Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. ZLa22 alloy GTAW Welding current FZ Microstructures Tensile strength Le, Qichi aut Guo, Ruizhen aut Ren, Liang aut Chen, Liang aut Chen, Xingrui aut Huang, Xuqiang aut Enthalten in Welding in the world Springer Berlin Heidelberg, 1963 65(2021), 12 vom: 02. Okt., Seite 2309-2318 (DE-627)129377309 (DE-600)164108-6 (DE-576)014759330 0043-2288 nnns volume:65 year:2021 number:12 day:02 month:10 pages:2309-2318 https://doi.org/10.1007/s40194-021-01184-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_267 GBV_ILN_2018 AR 65 2021 12 02 10 2309-2318 |
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Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy |
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Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy |
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Zhou, Weiyang |
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Welding in the world |
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Zhou, Weiyang Le, Qichi Guo, Ruizhen Ren, Liang Chen, Liang Chen, Xingrui Huang, Xuqiang |
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effect of welding current on the microstructures and mechanical properties of gtaw joints for zla22 alloy |
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Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy |
| abstract |
Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. © International Institute of Welding 2021 |
| abstractGer |
Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. © International Institute of Welding 2021 |
| abstract_unstemmed |
Abstract The effect of welding current on the microstructures and mechanical properties of gas tungsten arc welding (GTAW) joints for ZLa22 (Mg-2Zn-2La, wt%) alloy was investigated. The results show that increasing the welding current gradually increases the average grain size in the fusion zone (FZ) and gradually decreases the welded joints strength. However, incomplete penetration is formed in the FZ at a low welding current of 130A, resulting in a decrease in tensile strength. The ultimate tensile strength (UTS) of the welded joint reaches the maximum value of 117 MPa at a welding current of 150A, which is only 72.22% of the base metal (BM). The rupture location occurs in the transition zone (TZ), due to the stress concentration at the junction of large and small grains, which may lead to cracks. The Mg-Zn-La phase in the welded joints precipitates at the grain boundaries in a coarse semi-continuous network, which reduces the tensile strength of the welded joints. In addition, with the increase of the welding current, the microhardness of the FZ decreases. In the welded joints, the FZ exhibits as-cast quench structure with fine grains, offering the highest hardness in this zone. © International Institute of Welding 2021 |
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Effect of welding current on the microstructures and mechanical properties of GTAW joints for ZLa22 alloy |
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