IMR OpenIR
Effects of boron addition on the microstructure and mechanical property of As-cast Ti-46.5Al-8Nb alloy
Jiang Zhiguo; Chen Bo; Ma Yingche; Zhao Xiujuan; Liu Kui; Li Yiyi
Corresponding AuthorLiu Kui(kliu@imr.ac.cn)
2007-05-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume43Issue:5Pages:487-492
AbstractBoron addition (<= 0.7%, atomic fraction) in fully lamellar Ti-46.5Al-8Nb alloys could refine the grain size and the critical content is about 0.5%. The refining mechanism is controlled both by additive composition supercooling induced by boron at the solidification front and the precipitated boride pinning grain boundaries. Interlamellar spacing (lambda) increases with more boron added because boron could reduce the undercooling of the lamellar formation, and lambda value has linear relationship with the grain size d(-1/2). The higher the alpha(2) volume fraction in the as-cast alloy, the higher the hardness. The ultimate strength (sigma(b)) and elongation (delta) are improved when boron content increases. sigma(b) and grain size follows the Hall-Petch relationship.
KeywordTi-Al alloy boron microstructure mechanical property
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000247026200008
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/89488
Collection中国科学院金属研究所
Corresponding AuthorLiu Kui
AffiliationChinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Jiang Zhiguo,Chen Bo,Ma Yingche,et al. Effects of boron addition on the microstructure and mechanical property of As-cast Ti-46.5Al-8Nb alloy[J]. ACTA METALLURGICA SINICA,2007,43(5):487-492.
APA Jiang Zhiguo,Chen Bo,Ma Yingche,Zhao Xiujuan,Liu Kui,&Li Yiyi.(2007).Effects of boron addition on the microstructure and mechanical property of As-cast Ti-46.5Al-8Nb alloy.ACTA METALLURGICA SINICA,43(5),487-492.
MLA Jiang Zhiguo,et al."Effects of boron addition on the microstructure and mechanical property of As-cast Ti-46.5Al-8Nb alloy".ACTA METALLURGICA SINICA 43.5(2007):487-492.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang Zhiguo]'s Articles
[Chen Bo]'s Articles
[Ma Yingche]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang Zhiguo]'s Articles
[Chen Bo]'s Articles
[Ma Yingche]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang Zhiguo]'s Articles
[Chen Bo]'s Articles
[Ma Yingche]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.