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Effects of B or C on the macro-and micro-structures of cast near gamma TiAl alloys
Dong, LM; Cui, YY; Yang, R
Corresponding AuthorYang, R()
2002-06-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume38Issue:6Pages:643-646
AbstractThe effects of B and C on the macro- and micro-structures of near gamma TiAl alloys were compared. The results show that fine equiaxed grains are obtained with increasing concentration of B or C, but grain refinement by the two alloying additions exhibits different features. The grain size of the B containing alloy decreases gradually with increasing B content, whereas for alloying with C, the grain size drops suddenly beyond a critical C content. Microscope observations reveal that even trace lavel of B triggers the formation of TiB2-type boride which exhibits different morphologies with increasing B content. In alloys containing C, carbide particles can not be observed under optical microscope beneath the critical level of C, but large amounts of carbide particles are seen once the critical concentration is reached. The carbide is predominantly Ti2AlC as identified by electron diffraction. A brief analysis was made of the grain refining effects by B and C.
Keywordgamma TiAl alloying with B or C grain refinement as-cast alloy
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000176623900017
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/115664
Collection中国科学院金属研究所
Corresponding AuthorYang, R
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Dong, LM,Cui, YY,Yang, R. Effects of B or C on the macro-and micro-structures of cast near gamma TiAl alloys[J]. ACTA METALLURGICA SINICA,2002,38(6):643-646.
APA Dong, LM,Cui, YY,&Yang, R.(2002).Effects of B or C on the macro-and micro-structures of cast near gamma TiAl alloys.ACTA METALLURGICA SINICA,38(6),643-646.
MLA Dong, LM,et al."Effects of B or C on the macro-and micro-structures of cast near gamma TiAl alloys".ACTA METALLURGICA SINICA 38.6(2002):643-646.
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