Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer
文献类型：期刊论文
| 作者 | Chen, X; Han, Z; Lu, K; Han, Z (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2018-04-25 |
| 卷号 | 10期号:16页码:13829-13838 |
| 关键词 | Dynamic Plastic-deformation Subsurface Recrystallization Structure Nanocrystalline Ni-w Mechanical-properties Microstructural Evolution Nanocomposite Coatings Sliding Friction Behavior Resistance Alloy |
| ISSN号 | 1944-8244 |
| 英文摘要 | A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample, in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano grained counterparts. A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample, giving rise to a much reduced wear rate. Sliding induced surface deformation brings about the unique inhomogeneous substructure in the GNG Cu: the topmost layer persists with nanograins without being oxidized, underneath which deformation is well accommodated by grain coarsening adjacent to the dynamic recrystallization layer. Both subsurface structural evolution and stress field model confirm that sliding-induced strain localization is suppressed, which is responsible for the superior friction and wear behaviors of the GNG Cu.; A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample, in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano grained counterparts. A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample, giving rise to a much reduced wear rate. Sliding induced surface deformation brings about the unique inhomogeneous substructure in the GNG Cu: the topmost layer persists with nanograins without being oxidized, underneath which deformation is well accommodated by grain coarsening adjacent to the dynamic recrystallization layer. Both subsurface structural evolution and stress field model confirm that sliding-induced strain localization is suppressed, which is responsible for the superior friction and wear behaviors of the GNG Cu. |
| 学科主题 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | National Key R&D Program of China [2017YFA0204401, 2017YFA0204403]; National Natural Science Foundation [51231006]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79356]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Han, Z (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Chen, X,Han, Z,Lu, K,et al. Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(16):13829-13838. |
| APA | Chen, X,Han, Z,Lu, K,&Han, Z .(2018).Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer.ACS APPLIED MATERIALS & INTERFACES,10(16),13829-13838. |
| MLA | Chen, X,et al."Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer".ACS APPLIED MATERIALS & INTERFACES 10.16(2018):13829-13838. |
入库方式： OAI收割
来源：金属研究所
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