Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy

doi:10.1016/j.ijfatigue.2024.108586

IMR OpenIR

	Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy
	Li, Y. M.1,2; Guo, H. Y.1,2; Wang, X. G.2; Tan, Z. H.2; Yang, Y. H.2; Du, Y. L.3; Liu, J. L.2; Liu, J. D.2; Zhou, Y. Z.2; Sun, X. F.2
通讯作者	Wang, X. G.(xgwang11b@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@163.com)
	2025
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	190 页码:14
摘要	Understanding the comprehensive factors of oxidation behaviors and revealing their contribution to fatigue failure is of great importance. The low-cycle fatigue (LCF) coupled oxidation behavior of a novel low-cost third generation Ni-based single crystal superalloy with only 3 wt% of Re at 800 degrees C and 1000 degrees C was studied in the present work. The results indicated that oxidation-induced crack initiation was specifically responsible for the drastic reduction in LCF life at high temperatures, as opposed to the unobvious creep deterioration and the inferior fatigue damage via crack propagation in slow model-I. However, it was found that the preferential spallation of the weakly bonded (Ni, Co)O layer was beneficial in suppressing crack initiation. In terms of crack propagation, the proceeding oxidation of nearby fatigue cracks could boost dislocation recovery process, which thereby improved the toughness of the surrounding substrate to decelerate crack propagation. Noteworthy, a specific asymmetric oxidation phenomenon in single crystal alloy was identified for its required cyclic crystal rotation in one single grain. Importantly, guidance for chemical composition optimization was proposed that future efforts should be made to reduce oxidation damage during fatigue deformation by lowering oxidation kinetics and increasing the bonding strength of oxide layers.
关键词	Ni-based single crystal superalloy Low-cycle fatigue Oxidation Crack growth
资助者	Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang ; Excellent Youth Foundation of Liaoning Province ; Natural Science Fund Project of Liaoning Province
DOI	10.1016/j.ijfatigue.2024.108586
收录类别	SCI
语种	英语
资助项目	Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang[RC220440] ; Excellent Youth Foundation of Liaoning Province[2021-YQ-02] ; Natural Science Fund Project of Liaoning Province[2023-BS-186]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001310859000001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189818
专题	中国科学院金属研究所
通讯作者	Wang, X. G.; Zhou, Y. Z.
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Liaoning Petrochem Univ, Sch Mech Engn, Fushun 113001, Peoples R China
推荐引用方式 GB/T 7714	Li, Y. M.,Guo, H. Y.,Wang, X. G.,et al. Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2025,190:14.
APA	Li, Y. M..,Guo, H. Y..,Wang, X. G..,Tan, Z. H..,Yang, Y. H..,...&Sun, X. F..(2025).Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy.INTERNATIONAL JOURNAL OF FATIGUE,190,14.
MLA	Li, Y. M.,et al."Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy".INTERNATIONAL JOURNAL OF FATIGUE 190(2025):14.