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Microstructural stability and creep properties of intermetallic TiAl(W, Si, B) alloy
Zhou, LZ; Guo, JT; Xiao, X; Lupinc, V; Maldini, M
Corresponding AuthorZhou, LZ()
2002-11-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume38Issue:11Pages:1175-1180
AbstractMicrostructure, 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.
Keywordintermetallics high-temperature structural materials TiAl thermal stability creep
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000179827800008
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/114250
Collection中国科学院金属研究所
Corresponding AuthorZhou, LZ
Affiliation1.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
Recommended Citation
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.
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