| Wear mechanism transition dominated by subsurface recrystallization structure in Cu-Al alloys |
| X. Chen; Z. Han; K. Lu
|
| 2014
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| 发表期刊 | Wear
 |
| ISSN | 0043-1648
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| 卷号 | 320页码:41-50 |
| 摘要 | Dry sliding tribological properties and worn subsurface microstructures were investigated in Cu-Al alloys with Al concentrations of 0-2.2 wt%, It was found that the wear volume of Cu-Al alloys decreases with an increasing Al content below 0.5 wt%, and increases at higher Al contents above 0.5 wt%. For each sample, a worn subsurface layer is generated consisting of dynamic recrystallization (DRX) structures beneath the top nanostructured mixing layer (NML). DRX grain sizes decrease monotonically with an increasing Al content. As the DRX grain sizes are larger than 0.7 mu m, the wear-off process is dominated by cracking and peel-off of the NML. For the samples with finer DRX grains, cracking takes place within the DRX layer, of which peeling-off becomes a dominant mechanism. Such a wear mechanism transition is in agreement with the quantitative correspondence between wear volume and DRX grain size, indicating that the minimum wear volume (i.e,. the maximum wear resistance) exists at an average DRX grain size of about 0.7 mu m. (C) 2014 Elsevier By. All rights reserved. |
| 部门归属 | [chen, x.
; han, z.
; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lu, k.] nanjing univ sci & technol, herbert gleiter inst nanosci, nanjing 210094, jiangsu, peoples r china.
; han, z (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wcnhua rd, shenyang 110016, peoples r china.
; zhonghan@imr.ac.cn
; lu@imr.ac.cn
|
| 关键词 | Sliding Wear
Non-ferrous Metals
Copper
Aluminum
Thermal Effects
Electron Microscopy
Stacking-fault Energy
Dynamic Plastic-deformation
Sliding Wear
Grain-boundary
Si Alloy
Copper
Behavior
Aluminum
Friction
Metals
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| URL | 查看原文
|
| 语种 | 英语
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/73196
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
X. Chen,Z. Han,K. Lu. Wear mechanism transition dominated by subsurface recrystallization structure in Cu-Al alloys[J]. Wear,2014,320:41-50.
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| APA |
X. Chen,Z. Han,&K. Lu.(2014).Wear mechanism transition dominated by subsurface recrystallization structure in Cu-Al alloys.Wear,320,41-50.
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| MLA |
X. Chen,et al."Wear mechanism transition dominated by subsurface recrystallization structure in Cu-Al alloys".Wear 320(2014):41-50.
|
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