Mechanism of artificial surface defect induced cracking for very high cycle fatigue of Ti alloys
文献类型：期刊论文
| 作者 | Sun, Jian2,3; Peng, Wenjie1; Sun CQ(孙成奇)2,3 ; Sun CQ(孙成奇)
|
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 272页码:11 |
| 关键词 | TC17 titanium alloy Artificial surface defect Very high cycle fatigue Crack initiation mechanism Deformation twins |
| ISSN号 | 0013-7944 |
| DOI | 10.1016/j.engfracmech.2022.108721 |
| 通讯作者 | Sun, Chengqi(scq@lnm.imech.ac.cn) |
| 英文摘要 | In-situ observation of crack growth and electron backscatter diffraction observation of microstructure around artificial surface defect and at mated crack surfaces are conducted for very high cycle fatigue (VHCF) of TC17 alloy. The artificial surface defect induced VHCF failure presents no slow process of crack initiation and early growth accompanied with nanograin formation commonly observed for internal cracking induced VHCF. It is attributed to the synergistic effect of cyclic stress with time dependent process (e.g. the influence of moisture, action of hydrogen, etc.). The nanograins and deformation twins are also observed in some alpha grains at or near crack surfaces. |
| 分类号 | 二类/Q1 |
| WOS关键词 | HIGH-STRENGTH STEELS ; INITIATION REGION ; BEARING STEEL ; EARLY GROWTH ; TITANIUM ; FAILURE ; LIFE ; PROPAGATION ; EVOLUTION ; BEHAVIOR |
| 资助项目 | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[91860112] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000847930700001 |
| 资助机构 | National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China |
| 其他责任者 | Sun, Chengqi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89994]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Baosteel Cent Res Inst, Wuhan 430080, 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, Jian,Peng, Wenjie,Sun CQ,et al. Mechanism of artificial surface defect induced cracking for very high cycle fatigue of Ti alloys[J]. ENGINEERING FRACTURE MECHANICS,2022,272:11. |
| APA | Sun, Jian,Peng, Wenjie,孙成奇,&Sun CQ.(2022).Mechanism of artificial surface defect induced cracking for very high cycle fatigue of Ti alloys.ENGINEERING FRACTURE MECHANICS,272,11. |
| MLA | Sun, Jian,et al."Mechanism of artificial surface defect induced cracking for very high cycle fatigue of Ti alloys".ENGINEERING FRACTURE MECHANICS 272(2022):11. |
入库方式： OAI收割
来源：力学研究所
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