Effect of constraint factor on the thermo-mechanical fatigue behavior of an Al-Si eutectic alloy
文献类型：期刊论文
| 作者 | Wang, M.1,2; Pang, J. C.1; Liu, H. Q.1,2; Li, S. X.1; Zhang, M. X.1; Zhang, Z. F.1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2020-05-05 |
| 卷号 | 783页码:10 |
| 关键词 | Thermo-mechanical fatigue Al-Si eutectic alloy Constraint factor Damage mechanism Life prediction |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2020.139279 |
| 通讯作者 | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The thermo-mechanical fatigue (TMF) behaviors and corresponding damage mechanisms of Al-Si piston alloy were investigated in the temperature range of 120 similar to 425 degrees C under different constraint factors (eta). The TMF hysteresis loops exhibit asymmetrical, because the yield strength and elastic modulus decrease significantly with the increasing temperature. Taking the phase angles into consideration, the mean tensile stress for out of phase TMF (OP-TMF, eta < 0) and mean compressive stress for in-phase TMF (IP-TMF, eta > 0) can be found. The fatigue life of IP-TMF is longer than that of OP-TMF except for higher constraint factor, and the life of TMF decreases with the increasing absolute value of eta. There are two different crack initiation mechanisms under the constrain TMF: primary phases broken mainly for OP-TMF and matrix deboned mainly for IP-TMF. The oxidation may have only little influence on the crack behavior and TMF life, considering the obvious damage by deboned or broken primary phases. The tensile stress is key factor for fatigue crack initiation and growth in primary phases (Si and intermetallic) under cyclic deformation. The TMF life under different constrain factors can be predicted by the strain energy model with good precision. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51871224] ; LiaoNing Revitalization Talents Program[XLYC1808027] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000528267700004 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; LiaoNing Revitalization Talents Program |
| 源URL | [http://ir.imr.ac.cn/handle/321006/138513]  |
| 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.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Lab, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, M.,Pang, J. C.,Liu, H. Q.,et al. Effect of constraint factor on the thermo-mechanical fatigue behavior of an Al-Si eutectic alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,783:10. |
| APA | Wang, M.,Pang, J. C.,Liu, H. Q.,Li, S. X.,Zhang, M. X.,&Zhang, Z. F..(2020).Effect of constraint factor on the thermo-mechanical fatigue behavior of an Al-Si eutectic alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,783,10. |
| MLA | Wang, M.,et al."Effect of constraint factor on the thermo-mechanical fatigue behavior of an Al-Si eutectic alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 783(2020):10. |
入库方式： OAI收割
来源：金属研究所
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