Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy

IMR OpenIR

	Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy
	Zhou, LZ ; Guo, JT ; Xiao, X ; Lupinc, V ; Maldini, M
通讯作者	Zhou, LZ()
	2002-11-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	38 期号:11 页码:1175-1180
摘要	Microstructure, thermal stability and creep properties of cast intermetallic Ti-45Al-2W-0.5Si-0.5B (ABB-23) have been investigated. The results show that, during long-term aging at 800 and 900 degreesC, microstructural instabilities occur in the ABB-23 alloy, including breaking and mergence of alpha(2) laths, transformation of alpha(2) phase to B2 phase, spheroidization and coarsening of needle-like B2 phase, formation of equiaxed gamma grain in lamellar area, and increasing of lamellar spacing. Addition of B is demonstrated to be beneficial to the thermal stability of the alloy by comparing with its B-free counterpart ABB-2 alloy. The ABB-23 alloy shows superior creep-resistant ability in the temperature range of 700-800 degreesC over density-correct corrosion-resistant superalloy IN738LC. Additionally, its creep properties at high-temperature were also compared with other TiAl based alloys.
关键词	intermetallics high-temperature structural materials TiAl thermal stability creep
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:000179827800008
出版者	SCIENCE CHINA PRESS
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/321006/114250
专题	中国科学院金属研究所
通讯作者	Zhou, LZ
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Liaoning Ctr Anal Testing & Res, Shenyang 110015, Peoples R China 3.CNR, IENI, I-20125 Milan, Italy
推荐引用方式 GB/T 7714	Zhou, LZ,Guo, JT,Xiao, X,et al. Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy[J]. ACTA METALLURGICA SINICA,2002,38(11):1175-1180.
APA	Zhou, LZ,Guo, JT,Xiao, X,Lupinc, V,&Maldini, M.(2002).Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy.ACTA METALLURGICA SINICA,38(11),1175-1180.
MLA	Zhou, LZ,et al."Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy".ACTA METALLURGICA SINICA 38.11(2002):1175-1180.