Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel
文献类型：期刊论文
| 作者 | Hu YP(胡远培); Sun CQ(孙成奇) ; Hong YS(洪友士)
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| 刊名 | FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 41期号:8页码:1717-1732 |
| ISSN号 | 8756-758X |
| 关键词 | crack growth rate crack initiation fine-granular-area high-strength steel variable amplitude loading very-high-cycle fatigue |
| DOI | 10.1111/ffe.12811 |
| 英文摘要 | The S-N data up to very-high-cycle fatigue (VHCF) regime for a high-strength steel were obtained by fatigue tests under constant amplitude and variable amplitude (VA) via rotating bending and electromagnetic resonance cycling. Crack initiation for VHCF was from the interior of specimens, and the initiation region was carefully examined by scanning electron microscopy and transmission electron microscopy. Crack growth traces in the initiation region of fine-granular-area (FGA) were the first time captured for the specimens under VA cycling by rotating bending. The obtained crack growth rates in FGA were upwards to connect well with those in fish-eye region available in the literature and were associated well with the calculated equivalent crack growth rates in FGA. The observations of profile samples revealed that FGA is a nanograin layer for the specimens under VA cycling, which is a new evidence to support the previously proposed numerous cyclic pressing model. |
| 分类号 | 二类/Q1 |
| URL标识 | 查看原文 |
| WOS关键词 | CHROMIUM-BEARING STEEL ; LONG-LIFE FATIGUE ; N-GREATER-THAN-10(7) CYCLES ; ULTRASONIC FATIGUE ; METALLIC MATERIALS ; RESIDUAL-STRESSES ; MECHANISM ; BEHAVIOR ; PROPAGATION ; FAILURE |
| WOS研究方向 | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000437279500006 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22020201, XDB22040503] ; National Natural Science Foundation of China [11572325] |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77841]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu YP,Sun CQ,Hong YS. Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2018,41(8):1717-1732. |
| APA | 胡远培,孙成奇,&洪友士.(2018).Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,41(8),1717-1732. |
| MLA | 胡远培,et al."Crack growth rates and microstructure feature of initiation region for very-high-cycle fatigue of a high-strength steel".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 41.8(2018):1717-1732. |
入库方式： OAI收割
来源：力学研究所
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