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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 AuthorZhu Yingying()
2009-02-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume38Issue:2Pages:271-274
AbstractThe 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
KeywordTiAl alloys d-d electron interactions defects positron annihilation
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000264167400019
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/98252
Collection中国科学院金属研究所
Corresponding AuthorZhu Yingying
Affiliation1.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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