Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging
文献类型：期刊论文
| 作者 | Tang, Lei2; Peng, Xiao-yan3,4; Jiang, Fu-qing1; Li, Yao3; Xu, Guo-fu3,4 |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 32期号:5页码:1428-1441 |
| ISSN号 | 1003-6326 |
| 关键词 | equal angular pressing Al-Zn-Mg-Zr alloy grain refinement strengthening mechanism |
| DOI | 10.1016/S1003-6326(22)65884-9 |
| 通讯作者 | Xu, Guo-fu(csuxgf66@csu.edu.cn) |
| 英文摘要 | An ultrafine-grained Al-Zn-Mg-Zr alloy with superior mechanical performance was obtained by high passes of equal angular pressing (ECAP) and subsequent aging. After 8 ECAP passes and aging, the yield strength (YS) and ultimate tensile strength (UTS) of the solid-solutioned alloy are significantly improved from (98 +/- 10) and (226 +/- 7) MPa to (405 +/- 9) and (427 +/- 9) MPa, respectively. A large elongation is also maintained ((17.4 +/- 2.5)%). The microstructure features including grain refinement, morphology of precipitates, and dislocation density, were revealed with multiscale characterizations, including transmission electron microscopy, electron backscattered diffraction, and X-ray diffraction. After 8 passes of ECAP, the original coarse elongated grains are refined to a unique bimodal grain structure consisting of ultrafine equiaxed and lath-like grains. Additionally, the effects of ECAP and subsequent aging on the strengthening contribution of a variety of strengthening mechanisms, such as dislocation strengthening and precipitation strengthening, were discussed in detail. |
| 资助项目 | National Key Research and Development Plan, China[2021YFC1910500] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000871776100004 |
| 资助机构 | National Key Research and Development Plan, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176332]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu, Guo-fu |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England 3.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 4.Cent South Univ, Key Lab Nonferrous Metall Mat Sci & Engn, Minist Educ, Changsha 410083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Lei,Peng, Xiao-yan,Jiang, Fu-qing,et al. Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(5):1428-1441. |
| APA | Tang, Lei,Peng, Xiao-yan,Jiang, Fu-qing,Li, Yao,&Xu, Guo-fu.(2022).Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(5),1428-1441. |
| MLA | Tang, Lei,et al."Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.5(2022):1428-1441. |
入库方式： OAI收割
来源：金属研究所
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