全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Effects of Oxygen on the Microstructure of Ti_(47)Al_(0.7)B Alloys

Keywords: Microstructure,Oxygen content,Grain refinement,TiAl-based alloys

Full-Text   Cite this paper   Add to My Lib

Abstract:

The effects of oxygen on the microstructure of Ti-47Al-0.7B (at. pct) alloy for as-cast automotive valves were investigated. Six alloys with oxygen content from 0.4 to 1.4 at. pct were prepared by induction melting and centrifugal casting in CaO crucible under protective atmosphere. The microstructures were observed by optical microscopy (OM) and scanning electron microscope (SEM). The results show that the increase of oxygen content led to grain refinement and enhanced the microhardness as well as the α2 volume fraction in the TiAl-based alloys.

Full-Text

Contact Us

[email protected]

QQ:3279437679

WhatsApp +8615387084133