CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE

doi:10.3724/SP.J.1037.2011.00136

IMR OpenIR

	CHARACTERIZATION OF TiAl PRE-ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE
	Wang Gang; Zheng Zhuo; Chang Litao; Xu Lei; Cui Yuyou; Yang Rui
通讯作者	Cui Yuyou(yycui@imr.ac.cn)
	2011-10-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	47 期号:10 页码:1263-1269
摘要	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).
关键词	TiAl gas atomization metastable phase rnicrosegregation
DOI	10.3724/SP.J.1037.2011.00136
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000298903300007
出版者	SCIENCE PRESS
引用统计	被引频次：11[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/321006/106417
专题	中国科学院金属研究所
通讯作者	Cui Yuyou
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 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.