| Influence of Cr and Nb on Defects and d-d Electron Interactions in TiAl Alloys Researched by Positron Annihilation Techniques | |
| Zhu Yingying1,2; Deng Wen2,3; Sun Shunping2; Jiang Haifeng2; Huang Yuyang2; Cao Mingzhou3; Xiong Liangyue3 | |
| Corresponding Author | Zhu Yingying() |
| 2009-02-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 38Issue:2Pages:271-274 |
| Abstract | 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 |
| Keyword | TiAl alloys d-d electron interactions defects positron annihilation |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000264167400019 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/98252 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhu Yingying |
| Affiliation | 1.Henan Polytech Univ, Dept Chem & Phys, Jiaozuo 454000, Peoples R China 2.Guangxi Univ, Nanning 530004, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
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