Microstructure and tribological behaviors of diffusion bonded powder sintered Cu-Sn based alloys

doi:10.1088/2053-1591/ac31ff

	Microstructure and tribological behaviors of diffusion bonded powder sintered Cu-Sn based alloys
	Li, Zhenyu 1,2; Zhao, Gengrui 1; Wang, Honggang 1; Gao, Gui 1; Chen, Shengsheng 1; Yang, Dongya 2; Fan, Yue 3; Zhang, Guowei 4; Xu, Hong 4
刊名	MATERIALS RESEARCH EXPRESS
	2021-11
卷号	8 期号:11
关键词	Cu alloy diffusion alloyed powder friction and wear third-body layer
DOI	10.1088/2053-1591/ac31ff
英文摘要	Owing to good self-lubricating performance, tin bronze is widely used in industrial fields. As tin bronze parts manufactured by powder metallurgy, their tribological performances are influenced by raw powder. In this work, four types of self-lubricating copper alloy composites (CuSn10 (D), CuSn10, CuSn10Pb10 (D) and CuSn10Pb10) were prepared by sintering completely alloyed powder and diffusion alloyed copper tin powder. The morphology, element distribution and microstructure of raw powder and their sintered Cu alloy composites were observed. The tribological properties of Cu alloys were investigated by block-ring friction test under different working conditions and their worn surface and wear debris were analyzed. The results show that the diffusion alloyed powder has an irregular dendritic morphology and its sintered Cu alloy is more likely to produce twin structure which enhances the hardness and the bearing capacity of the material. Compared with completely alloyed powder sintered CuSn10 sample, the wear rate of CuSn10 (D) sintered from diffusion alloyed powder was reduced by 83.96%, 74.39%, and 67.63% under three typical working conditions. Under dry friction conditions, the wear rate of CuSn10 (D) is reduced by 63.64% than CuSn10, and CuSn10Pb10 (D) is 25% lower than CuSn10Pb10. The investigation on the wear tracks and wear debris of Cu alloy composites showed that the diffusion alloyed powder sintered samples are inclined to form a more consecutive and integral third-body layer on wear tracks and which contributes to the better wear resistance.
WOS研究方向	Materials Science
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000716748500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/149977]
专题	马克思主义学院机电工程学院
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Sci & Technol Wear & Protect Mat, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Gansu, Peoples R China; 3.Changchun Equipment Technol Res Inst, Changchun 130012, Jilin, Peoples R China; 4.North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhenyu,Zhao, Gengrui,Wang, Honggang,et al. Microstructure and tribological behaviors of diffusion bonded powder sintered Cu-Sn based alloys[J]. MATERIALS RESEARCH EXPRESS,2021,8(11).
APA	Li, Zhenyu.,Zhao, Gengrui.,Wang, Honggang.,Gao, Gui.,Chen, Shengsheng.,...&Xu, Hong.(2021).Microstructure and tribological behaviors of diffusion bonded powder sintered Cu-Sn based alloys.MATERIALS RESEARCH EXPRESS,8(11).
MLA	Li, Zhenyu,et al."Microstructure and tribological behaviors of diffusion bonded powder sintered Cu-Sn based alloys".MATERIALS RESEARCH EXPRESS 8.11(2021).