Fatigue strength optimization of gray cast iron processed by different austempering temperatures
文献类型：期刊论文
| 作者 | Teng, X. Y.1,3; Pang, J. C.3; Liu, F.1,2; Zou, C. L.3; Gao, C.3; Li, S. X.3; Zhang, Z. F.3 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 175页码:14 |
| 关键词 | Gray cast iron Austempering temperature Microstructures Tensile strength Fatigue strength |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2023.107831 |
| 通讯作者 | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | It is generally accepted that the mechanical properties of gray cast iron (GCI) can be enhanced by microstructure refinement, while this perhaps needs to be reconsidered to improve the fatigue properties treated by aus-tempering technology. Although the maximum tensile strength can be up to 480 MPa for austempered gray iron (AGI) with finer bainite fabricated by austempering transformations, the value of fatigue strength is less than the coarse counterpart with lower tensile strength. This suggests that tensile strength can be effectively improved by microstructure refinement, while fatigue cannot. It is mainly attributed to the initial defects induced by graphite and the structural toughness increased by austenite in AGI. Therefore, the general relationship between tensile strength and fatigue strength of GCI and AGI was investigated and the roles of fitting parameters were analyzed. The inverted relation provides some new insights into the fatigue strength optimization of GCI. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001038329300001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178777]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pang, J. C.; Zhang, Z. F. |
| 作者单位 | 1.Liaoning Petrochem Univ, Sch Mech Engn, 1 Dandong Rd, Fushun 113001, Peoples R China 2.Jihua Lab, Foshan 528200, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng, X. Y.,Pang, J. C.,Liu, F.,et al. Fatigue strength optimization of gray cast iron processed by different austempering temperatures[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,175:14. |
| APA | Teng, X. Y..,Pang, J. C..,Liu, F..,Zou, C. L..,Gao, C..,...&Zhang, Z. F..(2023).Fatigue strength optimization of gray cast iron processed by different austempering temperatures.INTERNATIONAL JOURNAL OF FATIGUE,175,14. |
| MLA | Teng, X. Y.,et al."Fatigue strength optimization of gray cast iron processed by different austempering temperatures".INTERNATIONAL JOURNAL OF FATIGUE 175(2023):14. |
入库方式： OAI收割
来源：金属研究所
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