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Deformation behavior and microstructure of DS NiAl/Cr(Mo) alloy containing Hf
Cui, CY; Guo, JT; Qi, YH; Ye, HQ
Corresponding AuthorGuo, JT()
2002-10-01
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume10Issue:10Pages:1001-1009
AbstractA multiphase alloy NiAl-28Cr-5.6Mo-0.1Hf was directionally solidified (DS) in an Al2O3-SiO2 mold by standard Bridgman method. The microstructure, fracture toughness and tensile properties at 980 C as well as tensile creep in the temperature range 982-1150 degreesC were studied. The alloy is composed of NiAl, Cr(Mo) and Hf-rich phase and the NiAl and Cr(Mo) interface is not smooth and straight. It was found that the strength of the present alloy was higher than that of many NiAl-based alloys, but the fracture toughness is lower than that of DS NiAl-28Cr-6Mo. The obtained creep curves have similar shape: a short primary creep and long accelerated creep stages. The n and Q for the eutectic alloy calculated from the multiple linear regression analysis are 5.8 and 524 kJ/mol. The rupture properties of DS NiAl-28Cr-5.6Mo-0.1Hf alloy follow the Monkman-Grant relationship. (C) 2002 Elsevier Science Ltd. All rights reserved.
Keywordnickel aluminide, based on NiAl mechanical properties at high temperature microstructure
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000179425100009
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/114513
Collection中国科学院金属研究所
Corresponding AuthorGuo, JT
AffiliationChinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Cui, CY,Guo, JT,Qi, YH,et al. Deformation behavior and microstructure of DS NiAl/Cr(Mo) alloy containing Hf[J]. INTERMETALLICS,2002,10(10):1001-1009.
APA Cui, CY,Guo, JT,Qi, YH,&Ye, HQ.(2002).Deformation behavior and microstructure of DS NiAl/Cr(Mo) alloy containing Hf.INTERMETALLICS,10(10),1001-1009.
MLA Cui, CY,et al."Deformation behavior and microstructure of DS NiAl/Cr(Mo) alloy containing Hf".INTERMETALLICS 10.10(2002):1001-1009.
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