A method of quasi in-situ EBSD observation for microstructure and damage evolution in fatigue and dwell fatigue of Ti alloys
文献类型:期刊论文
作者 | Sun, Chengqi2,3; Sun, Jian2,3; Chi, Weiqian1; Wang, Jiaxuan2,3; Wang, Wenjing1; Sun CQ(孙成奇) |
刊名 | INTERNATIONAL JOURNAL OF FATIGUE |
出版日期 | 2023-11-01 |
卷号 | 176页码:20 |
ISSN号 | 0142-1123 |
关键词 | Ti-6Al-4V ELI titanium alloy Low cycle fatigue Dwell fatigue Deformation twinning Failure mechanism |
DOI | 10.1016/j.ijfatigue.2023.107897 |
通讯作者 | Sun, Chengqi(scq@lnm.imech.ac.cn) ; Wang, Wenjing(wjwang@bjtu.edu.cn) |
英文摘要 | A method of quasi in-situ electron backscattered diffraction observation is developed for investigating microstructure and damage evolution of Ti-6Al-4V ELI alloy under cyclic loadings. It indicates that the slip tends to occur in & alpha; grains with bigger Schmid factors (SFs) for basal slip or prismatic slip and twinning occurs in & alpha; grains with SFs not bigger than 0.2 for prismatic slip for both fatigue and dwell fatigue. The plastic strain caused by dwell stress could restrain the sliding or cleavage induced microcrack growth. Subgrain formation in & alpha; grains due to twinning and dislocation sliding are also captured during cyclic loadings. |
WOS关键词 | SENSITIVE FATIGUE ; TITANIUM-ALLOY ; STRESS RATIO ; TEXTURE ; DEFORMATION ; NUCLEATION ; CREEP |
资助项目 | National Natural Science Foundation of China[11988102] |
WOS研究方向 | Engineering ; Materials Science |
语种 | 英语 |
WOS记录号 | WOS:001062166800001 |
资助机构 | National Natural Science Foundation of China |
源URL | [http://dspace.imech.ac.cn/handle/311007/92936] |
专题 | 力学研究所_非线性力学国家重点实验室 |
通讯作者 | Sun, Chengqi; Wang, Wenjing |
作者单位 | 1.Beijing Jiaotong Univ, Key Lab Vehicle Adv Mfg Measuring & Control Techno, Minist Educ, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Chengqi,Sun, Jian,Chi, Weiqian,et al. A method of quasi in-situ EBSD observation for microstructure and damage evolution in fatigue and dwell fatigue of Ti alloys[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,176:20. |
APA | Sun, Chengqi,Sun, Jian,Chi, Weiqian,Wang, Jiaxuan,Wang, Wenjing,&孙成奇.(2023).A method of quasi in-situ EBSD observation for microstructure and damage evolution in fatigue and dwell fatigue of Ti alloys.INTERNATIONAL JOURNAL OF FATIGUE,176,20. |
MLA | Sun, Chengqi,et al."A method of quasi in-situ EBSD observation for microstructure and damage evolution in fatigue and dwell fatigue of Ti alloys".INTERNATIONAL JOURNAL OF FATIGUE 176(2023):20. |
入库方式: OAI收割
来源:力学研究所
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