Oxidation micromechanics and contribution during the low-cycle fatigue failure of a Ni-based single crystal superalloy
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2025 |
| 卷号 | 190页码:14 |
| 关键词 | Ni-based single crystal superalloy Low-cycle fatigue Oxidation Crack growth |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2024.108586 |
| 通讯作者 | Wang, X. G.(xgwang11b@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@163.com) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001310859000001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | 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 |
| 源URL |  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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