Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy

IMR OpenIR

	Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy
	Wu Jun 1,2; Xu Lei 1; Lei Jiafeng 1; Liu Yuyin 1
通讯作者	Lei Jiafeng(jflei@imr.ac.cn)
	2015-09-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	44 期号:9 页码:2255-2259
摘要	Powder metallurgical Ti-5Al-2.5Sn ELI (extra low interstitial) alloy was prepared in a container by hot isostatic pressing (HIP). The effects of HIP temperature, particle size of powders and heat treatment temperature on the microstructure have been investigated. Particle morphology would be observed in the powder compact sample, with its relative density of 99.2% at the holding temperature of 800 degrees C. Within the temperature ranging from 900 to 940 degrees C, the microstructure has developed into fully dense and fine equiaxed grains. When the sample is compacted in alpha phase region, significant diffusion of Fe can be hardly observed at the boundary of the container and the compact; in alpha-beta or beta phase region, fast diffusion of Fe in beta phase may do harm to surface quality of the powder compact. The mean grain size and the residual porosity of PM alloy increase with the increase of powders' particle size. There is no obvious change in the microstructure of PM alloy after heat treatment in alpha phase region. Temperature induced porosity doesn't appear until the heat treatment temperature rises up to 1000 degrees C.
关键词	powder metallurgy hot isostatic pressing Ti-5Al-2.5Sn ELI microstructure
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000362612500033
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/120903
专题	中国科学院金属研究所
通讯作者	Lei Jiafeng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Peoples R China
推荐引用方式 GB/T 7714	Wu Jun,Xu Lei,Lei Jiafeng,et al. Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2015,44(9):2255-2259.
APA	Wu Jun,Xu Lei,Lei Jiafeng,&Liu Yuyin.(2015).Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy.RARE METAL MATERIALS AND ENGINEERING,44(9),2255-2259.
MLA	Wu Jun,et al."Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy".RARE METAL MATERIALS AND ENGINEERING 44.9(2015):2255-2259.