Microstructure refinement and grain size distribution in crack initiation region of very-high-cycle fatigue regime for high-strength alloys
文献类型:期刊论文
作者 | Chang YK(常玉坤)1,3; Pan XN(潘向南)2,3; Zheng L1; Hong YS(洪友士)2,3 |
刊名 | INTERNATIONAL JOURNAL OF FATIGUE |
出版日期 | 2020-05-01 |
卷号 | 134页码:12 |
ISSN号 | 0142-1123 |
关键词 | Very-high-cycle fatigue Crack initiation Fine granular area (FGA) Rough area (RA) High-strength alloys |
DOI | 10.1016/j.ijfatigue.2020.105473 |
英文摘要 | The microstructural features underneath the fracture surfaces of high-strength alloys experienced very-high-cycle fatigue were further investigated to show the nanograin layer in crack initiation regions under negative stress ratios due to numerous cyclic pressing (NCP) mechanism. The grain size and the thickness of nanograin layer in fine granular area of high-strength steels and rough area of titanium alloys were measured. A normalized quantity d* was proposed to characterize the distribution of the nanograin size. A new schematic to express NCP process was depicted to describe the contacting actions between crack surfaces, which causes the microstructure refinement of the high-strength alloys. |
分类号 | 一类 |
WOS关键词 | TITANIUM-ALLOY ; FORMATION MECHANISM ; METALLIC MATERIALS ; STRESS RATIO ; EARLY GROWTH ; BEHAVIOR ; TI-6AL-4V ; STEEL ; LIFE ; PROPAGATION |
资助项目 | National Natural Science Foundation of China[11932020] ; National Natural Science Foundation of China[11572325] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020201] |
WOS研究方向 | Engineering ; Materials Science |
语种 | 英语 |
WOS记录号 | WOS:000518708500046 |
资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
其他责任者 | 洪友士 |
源URL | [http://dspace.imech.ac.cn/handle/311007/81774] |
专题 | 力学研究所_非线性力学国家重点实验室 |
通讯作者 | Zheng L; Hong YS(洪友士) |
作者单位 | 1.Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Chang YK,Pan XN,Zheng L,et al. Microstructure refinement and grain size distribution in crack initiation region of very-high-cycle fatigue regime for high-strength alloys[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,134:12. |
APA | Chang YK,Pan XN,Zheng L,&Hong YS.(2020).Microstructure refinement and grain size distribution in crack initiation region of very-high-cycle fatigue regime for high-strength alloys.INTERNATIONAL JOURNAL OF FATIGUE,134,12. |
MLA | Chang YK,et al."Microstructure refinement and grain size distribution in crack initiation region of very-high-cycle fatigue regime for high-strength alloys".INTERNATIONAL JOURNAL OF FATIGUE 134(2020):12. |
入库方式: OAI收割
来源:力学研究所
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