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CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE
Wang Gang; Zheng Zhuo; Chang Litao; Xu Lei; Cui Yuyou; Yang Rui
Corresponding AuthorCui Yuyou(yycui@imr.ac.cn)
2011-10-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume47Issue:10Pages:1263-1269
AbstractTiAl 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).
KeywordTiAl gas atomization metastable phase rnicrosegregation
DOI10.3724/SP.J.1037.2011.00136
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000298903300007
PublisherSCIENCE PRESS
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106417
Collection中国科学院金属研究所
Corresponding AuthorCui Yuyou
AffiliationChinese 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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