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Thermal Fatigue Behavior of Single-Crystal Superalloy
Liu Yuan1,2; Yu Jinjiang1; Xu Yan1; Sun Xiaofeng1
Corresponding AuthorLiu Yuan(yuanliu@imr.ac.cn)
2009
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume38Issue:1Pages:59-63
AbstractThe effects of cycle temperatures on the thermal fatigue crack growth of three kinds of superalloys were investigated. The experimental results show that the crack growth rate increases with the rise of cycle temperature. Optical Microscopy (OM) and Scanning electron microscopy (SEM) observations reveal that multiple small cracks primarily initiated at the notch tip in any temperature range. Subsequently, only one or two small cracks can continue to grow, and finally form the main cracks. The crack growth behavior varies distinctly for different alloys. In general, thermal fatigue cracks propagate along a preferential direction with the dendrite growth direction in single crystal superalloy, but along the interdendritic region for the Mar-M002 alloy.
Keywordsingle-crystal superalloy thermal fatigue crack initiation and propagation
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000262955600014
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/96878
Collection中国科学院金属研究所
Corresponding AuthorLiu Yuan
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu Yuan,Yu Jinjiang,Xu Yan,et al. Thermal Fatigue Behavior of Single-Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(1):59-63.
APA Liu Yuan,Yu Jinjiang,Xu Yan,&Sun Xiaofeng.(2009).Thermal Fatigue Behavior of Single-Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,38(1),59-63.
MLA Liu Yuan,et al."Thermal Fatigue Behavior of Single-Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 38.1(2009):59-63.
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