Influence of Cr and Nb on Defects and d-d Electron Interactions in TiAl Alloys Researched by Positron Annihilation Techniques
文献类型：期刊论文
| 作者 | Zhu Yingying1,3; Deng Wen2,3; Sun Shunping3; Jiang Haifeng3; Huang Yuyang3; Cao Mingzhou2; Xiong Liangyue2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 38期号:2页码:271-274 |
| 关键词 | TiAl alloys d-d electron interactions defects positron annihilation |
| ISSN号 | 1002-185X |
| 通讯作者 | Zhu Yingying() |
| 英文摘要 | The positron lifetime and coincidence Doppler broadening spectra have been measured in pure Al, Si, Ti, Cr, Nb elements and Ti(50)Al(50), Ti(50)Al(48)Cr(2), Ti(50)Al(48)Nb(2) alloys. It has been found that the 3d electron signal and the electron density-for binary TiAl alloy are relative low due to the Ti 3d-Al 3p interactions. The addition of Cr and Nb atoms to TiAl alloy leads to the increase of electron densities in the bulk and grain boundaries simultaneously as well as the enhancement of d-d electron interactions. The d electron signal in the spectrum of Ti(50)Al(48)Cr(2) alloy is higher than that of Ti(50)Al(48)Nb(2) alloy. The effects of Cr and Nb on the d electrons of TiAl alloys have been discussed. Key words: TiAl alloys; d-d electron interactions; defects; positron annihilation |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000264167400019 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/98251]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhu Yingying |
| 作者单位 | 1.Henan Polytech Univ, Dept Chem & Phys, Jiaozuo 454000, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China 3.Guangxi Univ, Nanning 530004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu Yingying,Deng Wen,Sun Shunping,et al. Influence of Cr and Nb on Defects and d-d Electron Interactions in TiAl Alloys Researched by Positron Annihilation Techniques[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(2):271-274. |
| APA | Zhu Yingying.,Deng Wen.,Sun Shunping.,Jiang Haifeng.,Huang Yuyang.,...&Xiong Liangyue.(2009).Influence of Cr and Nb on Defects and d-d Electron Interactions in TiAl Alloys Researched by Positron Annihilation Techniques.RARE METAL MATERIALS AND ENGINEERING,38(2),271-274. |
| MLA | Zhu Yingying,et al."Influence of Cr and Nb on Defects and d-d Electron Interactions in TiAl Alloys Researched by Positron Annihilation Techniques".RARE METAL MATERIALS AND ENGINEERING 38.2(2009):271-274. |
入库方式： OAI收割
来源：金属研究所
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