Microstructure and tribological behaviors of diffusion bonded powder sintered Cu–Sn based alloys | |
Department | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Li Zhenyu; Zhao Gengrui; Wang Honggang; Gao Gui; Chen Shengsheng; Yang Dongya; Fan Yue; Zhang Guowei; Xu Hong | |
The second department | 609工程用特种润滑材料研究组 |
2021-11-10 | |
Source Publication | Materials Research Express |
Issue | 8Pages:116505 |
Abstract | 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. |
Keyword | Cu alloy diffusion alloyed powder friction and wear third-body layer |
DOI | 10.1088/2053-1591/ac31ff |
URL | 查看原文 |
Indexed By | SCI |
If | 1.62 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/27706 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Corresponding Author | Zhao Gengrui; Gao Gui; Chen Shengsheng |
Affiliation | 1.Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, People’s Republic of China 2.School of Mechanical & Electronical Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, People’s Republic of China 3.Changchun Equipment Technology Research Institute, Changchun, Jilin 130012, People’s Republic of China 4.School of Materials Science and Engineering, North University of China, Taiyuan, Shanxi 030051, People’s Republic of China |
Recommended Citation GB/T 7714 | Li Zhenyu,Zhao Gengrui,Wang Honggang,等. Microstructure and tribological behaviors of diffusion bonded powder sintered Cu–Sn based alloys[J]. Materials Research Express,2021(8):116505. |
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),116505. |
MLA | Li Zhenyu,et al."Microstructure and tribological behaviors of diffusion bonded powder sintered Cu–Sn based alloys".Materials Research Express .8(2021):116505. |
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