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Low-cycle fatigue behavior of K416B Ni-based superalloy at 650 degrees C
Xie Jun; Shu De-long; Hou Gui-chen; Yu Jin-jiang; Zhou Yi-zhou; Sun Xiao-feng
Corresponding AuthorXie Jun(junxie@imr.ac.cn)
2021-09-01
Source PublicationJOURNAL OF CENTRAL SOUTH UNIVERSITY
ISSN2095-2899
Volume28Issue:9Pages:2628-2635
AbstractA study on the low-cycle fatigue (LCF) behavior of K416B alloy was conducted at 650 degrees C. According to the results, the LCF behavior of K416B alloy at 650 degrees C is mainly manifested as elastic deformation and the fatigue life of the alloy is determined by the level of material strength. When tension-compression fatigue occurs, the deformation mechanism of the alloy is reflected in the form of dislocation slip, and the deformation dislocations are bowed out in the matrix by Orowan mechanism, which leads to a dislocation configuration similar to the Frawk-Reed source. At the late stage of low-cycle fatigue, the fatigue-induced cracks develop from the alloy surface. As fatigue test proceeds, it is possible for the cracks to continue development along the regions of eutectic and the bulk M6C carbide due to stress concentration, thus causing the alloy to show cleavage fracture.
KeywordK416B alloy low cycle fatigue deformation characteristics fatigue cracks
DOI10.1007/s11771-021-4797-4
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000710411100003
PublisherJOURNAL OF CENTRAL SOUTH UNIV
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167077
Collection中国科学院金属研究所
Corresponding AuthorXie Jun
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Xie Jun,Shu De-long,Hou Gui-chen,et al. Low-cycle fatigue behavior of K416B Ni-based superalloy at 650 degrees C[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2021,28(9):2628-2635.
APA Xie Jun,Shu De-long,Hou Gui-chen,Yu Jin-jiang,Zhou Yi-zhou,&Sun Xiao-feng.(2021).Low-cycle fatigue behavior of K416B Ni-based superalloy at 650 degrees C.JOURNAL OF CENTRAL SOUTH UNIVERSITY,28(9),2628-2635.
MLA Xie Jun,et al."Low-cycle fatigue behavior of K416B Ni-based superalloy at 650 degrees C".JOURNAL OF CENTRAL SOUTH UNIVERSITY 28.9(2021):2628-2635.
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