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Effect of counterface materials on dynamic recrystallized structure and wear resistance of nanostructured Cu
Yao, B.; Han, Z.; Han, Z (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017-09-01
发表期刊TRIBOLOGY INTERNATIONAL
ISSN0301-679X
卷号113页码:426-432
摘要Bulk nanostructured Cu sample with nano-scale twin bundles embedded in nano-sized grains was synthesized by using dynamic plastic deformation (DPD) technique. Dry sliding tribological properties of the DPD and the coarse grained (CG) Cu samples were investigated when sliding against different counterfaces. There is an obvious difference in the relative wear resistance of the DPD to the CG Cu as a result of the change of the counterface materials. Either for the DPD Cu or the CG Cu sample, the wear rate was much larger when sliding against Cu ball than that when sliding against WC-Co or AISI 52100 steel ball. The DPD Cu sample shows almost same wear rate compared with the CG Cu sliding against Cu or AISI 52100 steel ball, which is quite different from the enhanced wear resistance for the DPD Cu sample sliding against WC-Co ball. The worn subsurface structure for two kinds of Cu samples sliding against different counterfaces, was constituted by heavily deformed nanostructured mixing layer (NML) and ultra-fine grained dynamic recrystallization (DRX) layer. Structure characteristics of the NML and DRX layer determines wear rates of the Cu samples. When sliding against Cu or AISI 52100 steel ball, there are heavily cracked NMLs and extremely fine DRX grains in the subsurface, comparing with that sliding against WC-Co ball. This structure feature leads to quick spread of cracking and high flaking rate of the NML, which corresponds to much higher wear rate for both Cu samples.; Bulk nanostructured Cu sample with nano-scale twin bundles embedded in nano-sized grains was synthesized by using dynamic plastic deformation (DPD) technique. Dry sliding tribological properties of the DPD and the coarse grained (CG) Cu samples were investigated when sliding against different counterfaces. There is an obvious difference in the relative wear resistance of the DPD to the CG Cu as a result of the change of the counterface materials. Either for the DPD Cu or the CG Cu sample, the wear rate was much larger when sliding against Cu ball than that when sliding against WC-Co or AISI 52100 steel ball. The DPD Cu sample shows almost same wear rate compared with the CG Cu sliding against Cu or AISI 52100 steel ball, which is quite different from the enhanced wear resistance for the DPD Cu sample sliding against WC-Co ball. The worn subsurface structure for two kinds of Cu samples sliding against different counterfaces, was constituted by heavily deformed nanostructured mixing layer (NML) and ultra-fine grained dynamic recrystallization (DRX) layer. Structure characteristics of the NML and DRX layer determines wear rates of the Cu samples. When sliding against Cu or AISI 52100 steel ball, there are heavily cracked NMLs and extremely fine DRX grains in the subsurface, comparing with that sliding against WC-Co ball. This structure feature leads to quick spread of cracking and high flaking rate of the NML, which corresponds to much higher wear rate for both Cu samples.
部门归属[yao, b. ; han, z.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词Metals Structural Wear Scanning Electron Microscopy
学科领域Engineering, Mechanical
资助者National Natural Science Foundation of China [51231006]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78017
专题中国科学院金属研究所
通讯作者Han, Z (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Yao, B.,Han, Z.,Han, Z . Effect of counterface materials on dynamic recrystallized structure and wear resistance of nanostructured Cu[J]. TRIBOLOGY INTERNATIONAL,2017,113:426-432.
APA Yao, B.,Han, Z.,&Han, Z .(2017).Effect of counterface materials on dynamic recrystallized structure and wear resistance of nanostructured Cu.TRIBOLOGY INTERNATIONAL,113,426-432.
MLA Yao, B.,et al."Effect of counterface materials on dynamic recrystallized structure and wear resistance of nanostructured Cu".TRIBOLOGY INTERNATIONAL 113(2017):426-432.
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