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Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C
Li, Peng; Zhou, Bomou; Zhou, Yizhou; Zhang, Zhefeng
2019-05-03
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume35Issue:7Pages:767-774
AbstractLow-cycle fatigue tests on [001], [011] and Ni-based single crystal superalloys were conducted at 900 degrees C under a constant plastic strain control. Cracks will more readily propagate between the {111} planes than migrate between the {111} and {001} planes, as shown by the longer crack propagation period and fatigue life for each [001] specimen (all crystal orientations). The oxidation could proceed via two different diffusion paths: short-range diffusion and long-range diffusion. Fatigue cracks prefer to nucleate at one oxide and then propagate along the oxidised slip bands until they link to the next oxide, which could be predicted from fatigue crack growth data, including the fractographic slip band density and oxide depth.
KeywordOrientation fatigue life single crystal superalloy oxidation crack propagation
Indexed BySCI
Language英语
WOS IDWOS:000461976200001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81284
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Li, Peng,Zhou, Bomou,Zhou, Yizhou,et al. Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C[J]. MATERIALS SCIENCE AND TECHNOLOGY,2019,35(7):767-774.
APA Li, Peng,Zhou, Bomou,Zhou, Yizhou,&Zhang, Zhefeng.(2019).Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C.MATERIALS SCIENCE AND TECHNOLOGY,35(7),767-774.
MLA Li, Peng,et al."Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C".MATERIALS SCIENCE AND TECHNOLOGY 35.7(2019):767-774.
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