Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy

To improve the processing efficiency and the surface properties of C61900 Cu alloy, a gradient Cu-Ti film with a Ti/Cu atom ratio of 7:1, 7:4, and 1:2 was pre-fabricated by the unbalanced magnetron sputtering process and then nitrided by thermos plasma nitriding. The phase structure, elemental compo...

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Autores principales:	Yandan Zhu, Mufu Yan, Quanli Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	C61900 Cu alloy multi-phase coating gradient Cu-Ti films thermos plasma nitriding Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/7c3ddf7079874fa79f83c4dea0b94134
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spelling	oai:doaj.org-article:7c3ddf7079874fa79f83c4dea0b941342021-11-25T16:39:14ZMicrostructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy10.3390/app1122108432076-3417https://doaj.org/article/7c3ddf7079874fa79f83c4dea0b941342021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10843https://doaj.org/toc/2076-3417To improve the processing efficiency and the surface properties of C61900 Cu alloy, a gradient Cu-Ti film with a Ti/Cu atom ratio of 7:1, 7:4, and 1:2 was pre-fabricated by the unbalanced magnetron sputtering process and then nitrided by thermos plasma nitriding. The phase structure, elemental composition, and morphology of the modified surface were characterized, and the mechanical properties, including the wear resistance and adhesion properties, were examined. Combining calculation by the first principle method with thermodynamic analysis, the microstructural formation and phase composition of the Cu-Ti-N system were investigated to reveal the mechanism of improved wear resistance, which indicated the possible formation of various Cu-Ti intermetallics and Ti-N compounds. The Al in the C61900 Cu substrate also participated in the generation of the AlCu<sub>2</sub>Ti compound, which is a ductile phase with good hardness and elastic modulus. Based on the results of a mechanical properties test, it was concluded that an optimized layer structure for the multi-phase coating should include Ti-N compounds as the surface layer and Cu-Ti intermetallics as the intermediate layer.Yandan ZhuMufu YanQuanli ZhangMDPI AGarticleC61900 Cu alloymulti-phase coatinggradient Cu-Ti filmsthermos plasma nitridingTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10843, p 10843 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	C61900 Cu alloy multi-phase coating gradient Cu-Ti films thermos plasma nitriding Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	C61900 Cu alloy multi-phase coating gradient Cu-Ti films thermos plasma nitriding Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Yandan Zhu Mufu Yan Quanli Zhang Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
description	To improve the processing efficiency and the surface properties of C61900 Cu alloy, a gradient Cu-Ti film with a Ti/Cu atom ratio of 7:1, 7:4, and 1:2 was pre-fabricated by the unbalanced magnetron sputtering process and then nitrided by thermos plasma nitriding. The phase structure, elemental composition, and morphology of the modified surface were characterized, and the mechanical properties, including the wear resistance and adhesion properties, were examined. Combining calculation by the first principle method with thermodynamic analysis, the microstructural formation and phase composition of the Cu-Ti-N system were investigated to reveal the mechanism of improved wear resistance, which indicated the possible formation of various Cu-Ti intermetallics and Ti-N compounds. The Al in the C61900 Cu substrate also participated in the generation of the AlCu<sub>2</sub>Ti compound, which is a ductile phase with good hardness and elastic modulus. Based on the results of a mechanical properties test, it was concluded that an optimized layer structure for the multi-phase coating should include Ti-N compounds as the surface layer and Cu-Ti intermetallics as the intermediate layer.
format	article
author	Yandan Zhu Mufu Yan Quanli Zhang
author_facet	Yandan Zhu Mufu Yan Quanli Zhang
author_sort	Yandan Zhu
title	Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
title_short	Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
title_full	Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
title_fullStr	Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
title_full_unstemmed	Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy
title_sort	microstructure formation and mechanical properties of multi-phase coating by thermos plasma nitriding of gradient cu-ti films on c61900 cu alloy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7c3ddf7079874fa79f83c4dea0b94134
work_keys_str_mv	AT yandanzhu microstructureformationandmechanicalpropertiesofmultiphasecoatingbythermosplasmanitridingofgradientcutifilmsonc61900cualloy AT mufuyan microstructureformationandmechanicalpropertiesofmultiphasecoatingbythermosplasmanitridingofgradientcutifilmsonc61900cualloy AT quanlizhang microstructureformationandmechanicalpropertiesofmultiphasecoatingbythermosplasmanitridingofgradientcutifilmsonc61900cualloy
_version_	1718413085902897152

Microstructure Formation and Mechanical Properties of Multi-Phase Coating by Thermos Plasma Nitriding of Gradient Cu-Ti Films on C61900 Cu Alloy

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