In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating

New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC...
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Gespeichert in:

Autor*in:	Junfeng Bao [verfasserIn] Yueguang Yu [verfasserIn] Bowen Liu [verfasserIn] Chengchang Jia [verfasserIn] Chao Wu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	WC–Co Mo–B in situ reaction ternary boride densification process

Übergeordnetes Werk:	In: Materials - MDPI AG, 2009, 13(2020), 8, p 1995
Übergeordnetes Werk:	volume:13 ; year:2020 ; number:8, p 1995

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/ma13081995

Katalog-ID:	DOAJ016313453

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allfields	10.3390/ma13081995 doi (DE-627)DOAJ016313453 (DE-599)DOAJ3706110e99864cc0aec1dbc2543c0381 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Junfeng Bao verfasserin aut In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<. WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Yueguang Yu verfasserin aut Bowen Liu verfasserin aut Chengchang Jia verfasserin aut Chao Wu verfasserin aut In Materials MDPI AG, 2009 13(2020), 8, p 1995 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:13 year:2020 number:8, p 1995 https://doi.org/10.3390/ma13081995 kostenfrei https://doaj.org/article/3706110e99864cc0aec1dbc2543c0381 kostenfrei https://www.mdpi.com/1996-1944/13/8/1995 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2020 8, p 1995
spelling	10.3390/ma13081995 doi (DE-627)DOAJ016313453 (DE-599)DOAJ3706110e99864cc0aec1dbc2543c0381 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Junfeng Bao verfasserin aut In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<. WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Yueguang Yu verfasserin aut Bowen Liu verfasserin aut Chengchang Jia verfasserin aut Chao Wu verfasserin aut In Materials MDPI AG, 2009 13(2020), 8, p 1995 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:13 year:2020 number:8, p 1995 https://doi.org/10.3390/ma13081995 kostenfrei https://doaj.org/article/3706110e99864cc0aec1dbc2543c0381 kostenfrei https://www.mdpi.com/1996-1944/13/8/1995 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2020 8, p 1995
allfields_unstemmed	10.3390/ma13081995 doi (DE-627)DOAJ016313453 (DE-599)DOAJ3706110e99864cc0aec1dbc2543c0381 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Junfeng Bao verfasserin aut In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<. WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Yueguang Yu verfasserin aut Bowen Liu verfasserin aut Chengchang Jia verfasserin aut Chao Wu verfasserin aut In Materials MDPI AG, 2009 13(2020), 8, p 1995 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:13 year:2020 number:8, p 1995 https://doi.org/10.3390/ma13081995 kostenfrei https://doaj.org/article/3706110e99864cc0aec1dbc2543c0381 kostenfrei https://www.mdpi.com/1996-1944/13/8/1995 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2020 8, p 1995
allfieldsGer	10.3390/ma13081995 doi (DE-627)DOAJ016313453 (DE-599)DOAJ3706110e99864cc0aec1dbc2543c0381 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Junfeng Bao verfasserin aut In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<. WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Yueguang Yu verfasserin aut Bowen Liu verfasserin aut Chengchang Jia verfasserin aut Chao Wu verfasserin aut In Materials MDPI AG, 2009 13(2020), 8, p 1995 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:13 year:2020 number:8, p 1995 https://doi.org/10.3390/ma13081995 kostenfrei https://doaj.org/article/3706110e99864cc0aec1dbc2543c0381 kostenfrei https://www.mdpi.com/1996-1944/13/8/1995 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2020 8, p 1995
allfieldsSound	10.3390/ma13081995 doi (DE-627)DOAJ016313453 (DE-599)DOAJ3706110e99864cc0aec1dbc2543c0381 DE-627 ger DE-627 rakwb eng TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 Junfeng Bao verfasserin aut In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<. WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process Technology T Electrical engineering. Electronics. Nuclear engineering Engineering (General). Civil engineering (General) Microscopy Descriptive and experimental mechanics Yueguang Yu verfasserin aut Bowen Liu verfasserin aut Chengchang Jia verfasserin aut Chao Wu verfasserin aut In Materials MDPI AG, 2009 13(2020), 8, p 1995 (DE-627)595712649 (DE-600)2487261-1 19961944 nnns volume:13 year:2020 number:8, p 1995 https://doi.org/10.3390/ma13081995 kostenfrei https://doaj.org/article/3706110e99864cc0aec1dbc2543c0381 kostenfrei https://www.mdpi.com/1996-1944/13/8/1995 kostenfrei https://doaj.org/toc/1996-1944 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2020 8, p 1995
language	English
source	In Materials 13(2020), 8, p 1995 volume:13 year:2020 number:8, p 1995
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callnumber-first	T - Technology
author	Junfeng Bao
spellingShingle	Junfeng Bao misc TK1-9971 misc TA1-2040 misc QH201-278.5 misc QC120-168.85 misc WC–Co misc Mo–B<sub<4</sub<C misc in situ reaction misc ternary boride misc densification process misc Technology misc T misc Electrical engineering. Electronics. Nuclear engineering misc Engineering (General). Civil engineering (General) misc Microscopy misc Descriptive and experimental mechanics In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating
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topic_title	TK1-9971 TA1-2040 QH201-278.5 QC120-168.85 In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating WC–Co Mo–B<sub<4</sub<C in situ reaction ternary boride densification process
topic	misc TK1-9971 misc TA1-2040 misc QH201-278.5 misc QC120-168.85 misc WC–Co misc Mo–B<sub<4</sub<C misc in situ reaction misc ternary boride misc densification process misc Technology misc T misc Electrical engineering. Electronics. Nuclear engineering misc Engineering (General). Civil engineering (General) misc Microscopy misc Descriptive and experimental mechanics
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title	In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating
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title_sort	in situ ternary boride: effects on densification process and mechanical properties of wc-co composite coating
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title_auth	In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating
abstract	New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<.
abstractGer	New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<.
abstract_unstemmed	New coatings resistant to corrosion in high-temperature molten zinc aluminum were prepared by supersonic flame spraying of various composite powders. These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. When the amount of Mo–B<sub<4</sub<C added was 35.2%, the mechanical properties of the prepared coating reached optimal values: minimum porosity of 0.31 ± 0.15%, coating bonding strength of 77.81 ± 1.77 MPa, nanoindentation hardness of 20.12 ± 1.85 GPa, Young’s modulus of 281.52 ± 30.22 GPa, and fracture toughness of 6.38 ± 0.45 MPa·m<sup<1/2</sup<.
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container_issue	8, p 1995
title_short	In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating
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up_date	2024-07-03T20:15:59.752Z
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These composite powders were prepared by mixing, granulation, and heat treatment of various proportions of Mo–B<sub<4</sub<C powder and WC and Co powder. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), high-angle annular dark-field scanning transmission electron microscopy (HAADF–STEM), energy dispersive X-ray spectroscopy (EDS), and mechanical analysis were used to study the effects of Mo–B<sub<4</sub<C on the microstructure, phase, porosity, bonding strength, and elastic modulus of the composite powder and coating. Results show that the addition of an appropriate quantity of Mo–B<sub<4</sub<C reacts with Co to form ternary borides CoMo<sub<2</sub<B<sub<2</sub< and CoMoB. Ternary boride forms a perfect continuous interface, improving the mechanical properties and corrosion resistance property of the coating. 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In Situ Ternary Boride: Effects on Densification Process and Mechanical Properties of WC-Co Composite Coating

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