Effect of aging state on corrosion fatigue properties of 7075 aluminum alloy
文献类型：期刊论文
| 作者 | Gong, B. S.1,2; Zhang, Z. J.1,2; Hou, J. P.2; Duan, Q. Q.2; Wang, X. G.2; Zhang, Z. F.1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 161页码:8 |
| ISSN号 | 0142-1123 |
| 关键词 | 7075 Al alloy Aging state Corrosion fatigue Grain boundaries Pitting |
| DOI | 10.1016/j.ijfatigue.2022.106916 |
| 通讯作者 | Zhang, Z. J.(zjzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The corrosion fatigue performance of Al alloy components is crucial for their engineering applications. This study focuses on the corrosion fatigue properties of 7075 Al alloys in three different aging states, i.e. over-aging (OA), peak-aging (PA) and under-aging (UA) states. The results show that the fatigue damage mechanism of the Al alloy is greatly affected by the stress level. In the high-stress region where the cyclic number is short, the fatigue damage is mainly caused by dislocations accumulation and stress concentration on the grain boundary. Compared with the UA state, the wave slip dislocations at the OA state are easy to accumulate and annihilate at the second phase boundaries, which reduces the fatigue damage degree at the grain boundaries. However, in the low-stress range where the cyclic number is large, the corrosion fatigue life of the Al alloy is mainly controlled by pitting-induced crack initiation. For the OA state, the spacing and size of the precipitated phase are large, so it is easy to trigger corrosive pitting, which reduces the corrosion fatigue performance of the alloy. |
| 资助项目 | Youth Innovation Promotion Association CAS[2021192] ; National Natural Science Foundation of China (NSFC)[51871223] ; National Natural Science Foundation of China (NSFC)[51790482] ; National Natural Science Foundation of China (NSFC)[52130002] ; Chinese Academy of Sciences[174321KYSB20210002] ; KC Wong Education Foundation[GJTD-2020-09] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000829856700002 |
| 资助机构 | Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; KC Wong Education Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174665]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Z. J.; Zhang, Z. F. |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, B. S.,Zhang, Z. J.,Hou, J. P.,et al. Effect of aging state on corrosion fatigue properties of 7075 aluminum alloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,161:8. |
| APA | Gong, B. S.,Zhang, Z. J.,Hou, J. P.,Duan, Q. Q.,Wang, X. G.,&Zhang, Z. F..(2022).Effect of aging state on corrosion fatigue properties of 7075 aluminum alloy.INTERNATIONAL JOURNAL OF FATIGUE,161,8. |
| MLA | Gong, B. S.,et al."Effect of aging state on corrosion fatigue properties of 7075 aluminum alloy".INTERNATIONAL JOURNAL OF FATIGUE 161(2022):8. |
入库方式： OAI收割
来源：金属研究所
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