Surface topography evolution of Ni-based single crystal superalloy under laser shock: Formation of the nano-scale surface reliefs
文献类型：期刊论文
| 作者 | Lu, GX; Liu JD(刘纪德); Qiao HC(乔红超) ; Zhou YZ(周亦胄); Jin T(金涛); Sun XF(孙晓峰); Hu ZQ(胡壮麒)
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| 刊名 | Applied Physics A: Materials Science and Processing
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| 出版日期 | 2017 |
| 卷号 | 123期号:3页码:1-10 |
| ISSN号 | 0947-8396 |
| 产权排序 | 2 |
| 通讯作者 | 刘纪德 |
| 中文摘要 | The aim of the study was to investigate the effect of laser shock peening (LSP) on surface topography evolution of metallic targets. Samples manufactured by a Ni-based single crystal superalloy with polished finish were treated by LSP, and the surface topographies before and after LSP were examined by non-contact White-Light Interferometer (WLI). Results showed the following three aspects: (a) By taking advantage of WLI, the shrinkage porosities and the interdendritic structures were observed simultaneously. (b) With the increasing impact times, the round pit induced by laser shock became deeper. (c) The nano-scale surface reliefs were found on the bottom of round pit induced by LSP, and the specific plastic flow of metallic materials under the action of compressive stresses was deemed as the primary contributor to the formation of surface reliefs. It revealed a novel microscale plastic deformation phenomenon of metallic materials in surface strengthening. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | FOREIGN OBJECT DAMAGE ; RESIDUAL-STRESS ; MONOCRYSTALLINE COPPER ; FATIGUE BEHAVIOR ; ALLOY ; COMPRESSION ; TEMPERATURE ; MICROSTRUCTURE ; TI-6AL-4V |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000397576400033 |
| 源URL | [http://ir.sia.cn/handle/173321/20208]  |
| 专题 | 沈阳自动化研究所_装备制造技术研究室 |
| 推荐引用方式 GB/T 7714 | Lu, GX,Liu JD,Qiao HC,et al. Surface topography evolution of Ni-based single crystal superalloy under laser shock: Formation of the nano-scale surface reliefs[J]. Applied Physics A: Materials Science and Processing,2017,123(3):1-10. |
| APA | Lu, GX.,Liu JD.,Qiao HC.,Zhou YZ.,Jin T.,...&Hu ZQ.(2017).Surface topography evolution of Ni-based single crystal superalloy under laser shock: Formation of the nano-scale surface reliefs.Applied Physics A: Materials Science and Processing,123(3),1-10. |
| MLA | Lu, GX,et al."Surface topography evolution of Ni-based single crystal superalloy under laser shock: Formation of the nano-scale surface reliefs".Applied Physics A: Materials Science and Processing 123.3(2017):1-10. |
入库方式： OAI收割
来源：沈阳自动化研究所
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