| CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE | |
| Wang Gang; Zheng Zhuo; Chang Litao; Xu Lei; Cui Yuyou; Yang Rui | |
| Corresponding Author | Cui Yuyou(yycui@imr.ac.cn) |
| 2011-10-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 47Issue:10Pages:1263-1269 |
| Abstract | TiAl pre-alloyed powder (nominal composition Ti-47Al-2Cr-2Nb-0.2W-0.15B, atomic fraction, %) was produced by electrode induction melting gas atomization (EIGA) technique. The average diameter is 120.7 mu m, and the distribution of the powder diameter follows Gaussian distribution. The phase constitution is a function of particle diameter. The amount of the gamma phase increases with powder diameter increasing, the finest powder consists of predominantly alpha(2) phase. The alpha(2) phase in the powder was transformed into gamma phase after annealing at temperatures higher than 500 degrees C. Local coarsening was observed in the microstructure of TiAl compact duo to the microsegregation of elements in the powder. The)(PS result indicated that the outer layer of the TiAl pre-alloyed particle consists of a thin layer of Al(2)O(3) and TiO(2). |
| Keyword | TiAl gas atomization metastable phase rnicrosegregation |
| DOI | 10.3724/SP.J.1037.2011.00136 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000298903300007 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/106417 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cui Yuyou |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang Gang,Zheng Zhuo,Chang Litao,et al. CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE[J]. ACTA METALLURGICA SINICA,2011,47(10):1263-1269. |
| APA | Wang Gang,Zheng Zhuo,Chang Litao,Xu Lei,Cui Yuyou,&Yang Rui.(2011).CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE.ACTA METALLURGICA SINICA,47(10),1263-1269. |
| MLA | Wang Gang,et al."CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE".ACTA METALLURGICA SINICA 47.10(2011):1263-1269. |
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