Knowledge Management System Of Institute of metal research，CAS
| Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content | |
| Gong, B. S.; Liu, Z. J.; Wang, Y. L.; Zhang, Z. J.; Zhang, P.; Jiang, H. C.; Rong, L. J.; Zhang, Z. F. | |
| 2019-01-10 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 742Pages:15-22 |
| Abstract | As high-strength aluminum alloy for traction beam of high-speed rail, the fatigue strength of A7N01 aluminum alloy is particularly critical for its industrial application. In order to improve the fatigue strength of this aluminum alloy, three kinds of A7N01 aluminum alloy with different Si content were selected. The result indicates that, with the increase of Si element content, the fatigue strength is enhanced monotonously and meanwhile the dispersivity of S-N curves is largely reduced. Analyses of microstructure and the error of strength and hardness all indicate that the microstructure homogeneity of the alloy is improved when increasing the Si content, which is proved to be the main reason for the enhanced fatigue strength and reduced fatigue life dispersivity. Besides, it is found that the discontinuous distribution of the grain boundary precipitates due to the increase of Si content also contributes to the improved fatigue property. |
| Keyword | A7N01 aluminum alloy Si content Fatigue strength Microstructure homogeneity |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000457814400002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/81459 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Gong, B. S.,Liu, Z. J.,Wang, Y. L.,et al. Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,742:15-22. |
| APA | Gong, B. S..,Liu, Z. J..,Wang, Y. L..,Zhang, Z. J..,Zhang, P..,...&Zhang, Z. F..(2019).Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,742,15-22. |
| MLA | Gong, B. S.,et al."Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 742(2019):15-22. |
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