Experimental investigation of laser peening on TiAl alloy microstructure and properties
文献类型：期刊论文
| 作者 | Qiao HC(乔红超) ; Zhao JB(赵吉宾); Gao Y(高宇)
|
| 刊名 | Chinese Journal of Aeronautics
 |
| 出版日期 | 2015 |
| 卷号 | 28期号:2页码:609-616 |
| 关键词 | High temperature stability Laser peening Microstructure Residual stress TiAl alloy |
| ISSN号 | 1000-9361 |
| 产权排序 | 1 |
| 通讯作者 | 乔红超 |
| 中文摘要 | In order to study the effect of laser peening on microstructures and properties of TiAl alloy, TiAl alloy samples were treated by Nd:YAG laser system with the wavelength of 1064nm, pulse-width of 18ns, and pulse-energy of 0-10J. Surface micro-hardness, roughness, and microstructural characteristics were tested with micro-hardness tester, roughness tester and scanning electron microscope. Residual stress and pole figures were tested with X-ray diffraction and its high-temperature stability was analyzed. The experimental results show that surface micro-hardness increases by up to 30%, roughness increases to 0.37μm, compressive residual stress increases to 337MPa, and local texture and typical lamellar microstructure are generated. Residual stress, micro-hardness, and (002) pole figures tests are conducted, compressive residual stress value drops from 337MPa to 260MPa, hardness value drops from 377HV0.2 to 343HV0.2, and the (002) poles shift back to the center slightly. Laser peening improves microstructure and properties of TiAl alloy significantly. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Aerospace |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | MECHANICAL-PROPERTIES ; TITANIUM-ALLOY ; FATIGUE BEHAVIOR ; SPRING STEEL ; SHOCK ; DEFORMATION ; ENHANCEMENT ; TI-6AL-4V |
| 收录类别 | SCI ; EI ; CSCD |
| 语种 | 英语 |
| WOS记录号 | WOS:000355188900030 |
| 源URL | [http://ir.sia.ac.cn/handle/173321/16165]  |
| 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 | Qiao HC,Zhao JB,Gao Y. Experimental investigation of laser peening on TiAl alloy microstructure and properties[J]. Chinese Journal of Aeronautics,2015,28(2):609-616. |
| APA | Qiao HC,Zhao JB,&Gao Y.(2015).Experimental investigation of laser peening on TiAl alloy microstructure and properties.Chinese Journal of Aeronautics,28(2),609-616. |
| MLA | Qiao HC,et al."Experimental investigation of laser peening on TiAl alloy microstructure and properties".Chinese Journal of Aeronautics 28.2(2015):609-616. |
入库方式： OAI收割
来源：沈阳自动化研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。