Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C | |
Li, Peng1; Zhou, Bomou2; Zhou, Yizhou3; Zhang, Zhefeng2 | |
Corresponding Author | Li, Peng(pengli@ysu.edu.cn) |
2019-03-14 | |
Source Publication | MATERIALS SCIENCE AND TECHNOLOGY
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ISSN | 0267-0836 |
Pages | 8 |
Abstract | Low-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. |
Keyword | Orientation fatigue life single crystal superalloy oxidation crack propagation |
Funding Organization | Alexander von Humboldt Foundation ; National Natural Science Foundation of China (NSFC) ; Yanshan University Scientific Research Foundation for Advanced Talents |
DOI | 10.1080/02670836.2019.1590503 |
Indexed By | SCI |
Language | 英语 |
Funding Project | Alexander von Humboldt Foundation ; National Natural Science Foundation of China (NSFC)[51001104] ; National Natural Science Foundation of China (NSFC)[51331007] ; Yanshan University Scientific Research Foundation for Advanced Talents |
WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
WOS ID | WOS:000461976200001 |
Publisher | TAYLOR & FRANCIS LTD |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.imr.ac.cn/handle/321006/132478 |
Collection | 中国科学院金属研究所 |
Corresponding Author | Li, Peng |
Affiliation | 1.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Clean Nano Energy Ctr, Qinhuangdao 066004, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang, Liaoning, Peoples R China |
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,2019:8. |
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,8. |
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 (2019):8. |
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