High-temperature fatigue damage mechanism and strength prediction of vermicular graphite iron
文献类型：期刊论文
| 作者 | Chen, Y.1,2; Pang, J. C.2; Zou, C. L.2; Li, S. X.2; Zhang, Z. F.1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 168页码:13 |
| 关键词 | Vermicular graphite iron High-temperature fatigue Microstructures Damage mechanism Fatigue strength prediction |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2022.107477 |
| 通讯作者 | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The high-temperature tensile properties, high-cycle fatigue properties and related damage mechanisms of vermicular graphite iron (VGI) with different microstructures at 500 degrees C were investigated. It is found that compared with ferritic VGI, pearlitic VGI has higher tensile strength and fatigue strength. The tensile strength shows a linear increasing trend with the increase of pearlite content. For ferritic VGI, fatigue cracks initiate at the graphite/ferrite interface, the ferrite grain boundary softens at high temperature, and cracks propagate along the grain boundary. In pearlitic VGI, fatigue cracks can also initiate at the graphite/pearlite interface due to oxidative debonding, and oxidation accelerates the initiation and propagation of fatigue cracks. Considering the influence of microstructures and temperature, a new method for predicting the high-temperature fatigue strength of VGI was proposed. This method has high prediction accuracy and suits for VGI from the room temperature to the high-temperature. |
| 资助项目 | National Natural Science Foundation of China (NSFC) ; [51871224] ; [52130002] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000909692900001 |
| 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/321006/175439]  |
| 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.Zhengzhou Univ, Henan Inst Adv Technol, 97 Wenhua Rd, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Y.,Pang, J. C.,Zou, C. L.,et al. High-temperature fatigue damage mechanism and strength prediction of vermicular graphite iron[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,168:13. |
| APA | Chen, Y.,Pang, J. C.,Zou, C. L.,Li, S. X.,&Zhang, Z. F..(2023).High-temperature fatigue damage mechanism and strength prediction of vermicular graphite iron.INTERNATIONAL JOURNAL OF FATIGUE,168,13. |
| MLA | Chen, Y.,et al."High-temperature fatigue damage mechanism and strength prediction of vermicular graphite iron".INTERNATIONAL JOURNAL OF FATIGUE 168(2023):13. |
入库方式： OAI收割
来源：金属研究所
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