Effects of element diffusion on microstructure and friction behavior of high-aluminum bronze plasma spray coating

	Effects of element diffusion on microstructure and friction behavior of high-aluminum bronze plasma spray coating
	He, Yan-Yan 1; Li, Wen-Sheng 1; Wu, Xue-Jun 2; Wang, Da-Feng 1; Yang, Xiao-Tian 1; He, Ling 1
刊名	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
	2015
卷号	25 期号:1 页码:143-149
关键词	Adhesives Aluminum coated steel Bronze Diffusion Diffusion coatings Friction Morphology Plasma jets Plasma spraying Wear of materials Element diffusion Friction and wear behaviors Friction behavior Low friction coefficients Medium-carbon steels Phase morphology Plasma spray coating Plasma spray welding
ISSN号	10040609
英文摘要	High-aluminum bronze coating with a thickness of 5 mm was sprayed by plasma spray welding on 45 medium carbon steel with size of d100 mm× 30 mm. The workpieces were cut at zones of 32, 33, and 34 mm from the bottom of the substrate. The thicknesses of coatings on the substrate were 2, 3 and 4 mm, respectively. The effects of element diffusion on the phase structure, microhardness, friction and wear behavior were analyzed at room temperature. The results show that Fe element coming from substrate diffuses into the coating. With increasing the distance from the interface, Fe element diffusion decreases. The volume fraction of Fe-rich k phase is relatively high on the sprayed layer near the substrate. This increases the compatibility of structure between the coating and Fe-based counterpart. The k phase of coating gathers into spots or globules. Such k phase tends to stick the counterpart during friction process, which even causes some particles. Therefore, its wear behavior is the worst despite of the high hardness of coating. However, in the sample near the surface of coating, the bulky dendritic k phases change to small dendritic and granular ones, and thus results in a decrease of adhesive wear, which causes a low friction coefficient and wear rate. The wear mechanism is characterized as abrasive wear. ©, 2015, Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals. All right reserved.
语种	中文
出版者	Central South University of Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113230]
专题	材料科学与工程学院学报编辑部
作者单位	1.State Key Laboratory of Advanced Nonferrous Materials Process and Recycles, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Jinchuan Machinery Manufacturing Co., Ltd., Jinchang; 737102, China
推荐引用方式 GB/T 7714	He, Yan-Yan,Li, Wen-Sheng,Wu, Xue-Jun,et al. Effects of element diffusion on microstructure and friction behavior of high-aluminum bronze plasma spray coating[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2015,25(1):143-149.
APA	He, Yan-Yan,Li, Wen-Sheng,Wu, Xue-Jun,Wang, Da-Feng,Yang, Xiao-Tian,&He, Ling.(2015).Effects of element diffusion on microstructure and friction behavior of high-aluminum bronze plasma spray coating.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,25(1),143-149.
MLA	He, Yan-Yan,et al."Effects of element diffusion on microstructure and friction behavior of high-aluminum bronze plasma spray coating".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 25.1(2015):143-149.