| Microstructure of Powder Metallurgical Ti-5Al-2.5Sn ELI Alloy | |
| Wu Jun1,2; Xu Lei1; Lei Jiafeng1; Liu Yuyin1 | |
| Corresponding Author | Lei Jiafeng(jflei@imr.ac.cn) |
| 2015-09-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 44Issue:9Pages:2255-2259 |
| Abstract | 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. |
| Keyword | powder metallurgy hot isostatic pressing Ti-5Al-2.5Sn ELI microstructure |
| 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:000362612500033 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/120903 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lei Jiafeng |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Peoples R China |
| Recommended Citation 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. |
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