Mechanical Properties and Microstructures of Commercial-Purity Aluminum Processed by Rotational Accelerated Shot Peening Plus Cold Rolling | |
Liu YF1; Cao Y1; Zhou H1; Chen XF(陈雪飞)2; Liu Y1; Xiao LR1; Huan XW1; Zhao YH1; Zhu YT1,3 | |
发表期刊 | ADVANCED ENGINEERING MATERIALS |
2020 | |
卷号 | 22期号:1页码:8 |
ISSN | 1438-1656 |
摘要 | Commercial-purity aluminum with 99.7% purity is processed by rotational accelerated shot peening (RASP) and cold-rolling. RASP samples are rolled at room temperature to a thickness reduction of 20% and 30%, for the purpose of surface roughness reduction and strengthening. Detailed microstructural characterization and hardness tests reveal that cold-rolling cause grain growth at the surfaces of RASP samples from approximate to 472 to approximate to 1000 nm. Moderate cold-rolling is effective in smoothing the surface of RASP samples, while improving strength and maintaining ductility. However, cold-rolling to more than 30% thickness reduction eventually diminishes the gradient nanostructure. During cold-rolling of RASP samples, a transition zone with strong strain incompatibility is noticed by a sharp rise in hardness at some point of the hardness-distribution curve from the surface to the core of the sample. This transition zone is a result of quick generation of geometrically necessary dislocations. Although the transition zone with strong strain incompatibility is short-lived, it is anticipated to be common among gradient-nanostructured materials under cold-rolling condition. |
关键词 | commercial-purity aluminum gradient structures mechanical properties microstructures plastic deformation |
DOI | 10.1002/adem.201900478 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000508434300006 |
关键词[WOS] | NANOSTRUCTURED SURFACE-LAYER ; HIGH-PRESSURE TORSION ; GRAIN-REFINEMENT ; STAINLESS-STEEL ; METALS ; SIZE ; DEFORMATION ; TEMPERATURE ; EVOLUTION ; STRENGTH |
WOS研究方向 | Materials Science |
WOS类目 | Materials Science, Multidisciplinary |
论文分区 | 二类 |
力学所作者排名 | 2 |
RpAuthor | Liu, Ying |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/81329 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA |
推荐引用方式 GB/T 7714 | Liu YF,Cao Y,Zhou H,et al. Mechanical Properties and Microstructures of Commercial-Purity Aluminum Processed by Rotational Accelerated Shot Peening Plus Cold Rolling[J]. ADVANCED ENGINEERING MATERIALS,2020,22,1,:8. |
APA | Liu YF.,Cao Y.,Zhou H.,Chen XF.,Liu Y.,...&Zhu YT.(2020).Mechanical Properties and Microstructures of Commercial-Purity Aluminum Processed by Rotational Accelerated Shot Peening Plus Cold Rolling.ADVANCED ENGINEERING MATERIALS,22(1),8. |
MLA | Liu YF,et al."Mechanical Properties and Microstructures of Commercial-Purity Aluminum Processed by Rotational Accelerated Shot Peening Plus Cold Rolling".ADVANCED ENGINEERING MATERIALS 22.1(2020):8. |
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