Crack initiation induced nanograins and facets of a titanium alloy with lamellar and equiaxed microstructure in very-high-cycle fatigue
文献类型：期刊论文
| 作者 | Pan XN(潘向南) ; Xu, Shouwen; Nikitin, Alexander; Shanyavskiy, Andrey; PalinLuc, Thierry; Hong YS(洪友士)
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| 刊名 | MATERIALS LETTERS
 |
| 出版日期 | 2024-02-15 |
| 卷号 | 357页码:5 |
| ISSN号 | 0167-577X |
| 关键词 | Titanium alloy Crack initiation Facet Nanograin Fatigue Microstructure |
| DOI | 10.1016/j.matlet.2023.135769 |
| 通讯作者 | Hong, Youshi(hongys@imech.ac.cn) |
| 英文摘要 | Fractographic and microstructure features in crack initiation region in very-high-cycle fatigue (VHCF) were characterized for an extruded titanium alloy VT3-1 under stress ratios R =-1 and 0.1. The material consists of lamellar and equiaxed microstructure. All specimens failed by internal crack initiation with rough area feature in VHCF. Within the rough area region, facets initiated from a big cluster of lamellar alpha at R = 0.1, and nanograin layers formed at some local areas underneath fracture surfaces due to insufficient contact of NCP (numerous cyclic pressing) process in the inhomogeneous microstructure at R =-1. Here, NCP mechanism still dominates the VHCF behavior of this titanium alloy under negative stress ratios, and facets dominate at R > 0. |
| 分类号 | 二类 |
| 资助项目 | National Natural science Foundation of China[11932020] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001143213200001 |
| 资助机构 | National Natural science Foundation of China |
| 其他责任者 | Hong, Youshi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94118]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pan XN,Xu, Shouwen,Nikitin, Alexander,et al. Crack initiation induced nanograins and facets of a titanium alloy with lamellar and equiaxed microstructure in very-high-cycle fatigue[J]. MATERIALS LETTERS,2024,357:5. |
| APA | 潘向南,Xu, Shouwen,Nikitin, Alexander,Shanyavskiy, Andrey,PalinLuc, Thierry,&洪友士.(2024).Crack initiation induced nanograins and facets of a titanium alloy with lamellar and equiaxed microstructure in very-high-cycle fatigue.MATERIALS LETTERS,357,5. |
| MLA | 潘向南,et al."Crack initiation induced nanograins and facets of a titanium alloy with lamellar and equiaxed microstructure in very-high-cycle fatigue".MATERIALS LETTERS 357(2024):5. |
入库方式： OAI收割
来源：力学研究所
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