| Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates | |
| Wang, M.1; Pang, J. C.1; Liu, H. Q.1,2; Zou, C. L.1,3; Li, S. X.1; Zhang, Z. F.1,2 | |
| Corresponding Author | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 2019-10-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE
 |
| ISSN | 0142-1123 |
| Volume | 127Pages:268-274 |
| Abstract | The low-cycle fatigue (LCF) deformation mechanism and fatigue life of an Al-12Si alloy were investigated at different temperatures and strain rates. With increasing temperature, the fatigue life increases at first and then reduces, which is derived from the deformation mechanism. At the lower temperatures, the primary Si cracking induced by piling-up of dislocations dominates fatigue damage behaviors. Both of increasing temperature and reducing the strain-rate can restrain the phase cracking, thus increase fatigue life. However, with further increasing temperature, the micro-scale void caused by dislocation annihilation dominates the phase debonding behavior, leading to the decrease of fatigue life. |
| Keyword | Al-12Si alloy Low-cycle fatigue Strain rate High temperature Damage mechanism |
| Funding Organization | National Natural Science Foundation of China (NSFC) |
| DOI | 10.1016/j.ijfatigue.2019.06.023 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[51331007] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000482492600025 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135417 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Pang, J. C.; Zhang, Z. F. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Lab, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao Rd, Shenyang 110870, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, M.,Pang, J. C.,Liu, H. Q.,et al. Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates[J]. INTERNATIONAL JOURNAL OF FATIGUE,2019,127:268-274. |
| APA | Wang, M.,Pang, J. C.,Liu, H. Q.,Zou, C. L.,Li, S. X.,&Zhang, Z. F..(2019).Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates.INTERNATIONAL JOURNAL OF FATIGUE,127,268-274. |
| MLA | Wang, M.,et al."Deformation mechanism and fatigue life of an Al-12Si alloy at different temperatures and strain rates".INTERNATIONAL JOURNAL OF FATIGUE 127(2019):268-274. |
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