The effect of precipitates on the fracture behavior and tensile properties of Mg-14Gd-0.5Zr (wt.%) alloy
文献类型：期刊论文
| 作者 | Li, Chunxiao1,2; Wei, Jianxiong1,2; Jin, Jianfeng4; Yan, Hong2,3; Shan, Zhiwei5,6; Mao, Yaozong7; Chen, Rongshi2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 180页码:226-242 |
| 关键词 | Fracture Mg -RE alloy Precipitate Aging treatment Mechanical property |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2023.08.062 |
| 通讯作者 | Yan, Hong(Yanhong581@163.com) ; Chen, Rongshi(rschen@imr.ac.cn) |
| 英文摘要 | The effect of precipitation aging on the fracture behavior of cast Mg-14.23Gd-0.45Zr (wt.%) alloy at room temperature has been studied in this work. Uniaxial tensile and three-point bending tests were conducted on samples peak-aged at 175, 200, 225, and 250 degrees C. Notably, samples aged at 175 degrees C and 200 degrees C exhibited premature fracture during the uniaxial tensile test. Through fractographic observations of the tensile test samples and electron backscattered diffraction (EBSD) analysis on the samples subjected to three-point bending tests, a preferential formation of cleavage cracks in samples aged at 175 degrees C and 200 degrees C was identified as the reason for their premature fracture. The X-ray diffraction (XRD) results and transmission electron microscopy (TEM) observations of precipitates indicate that the dominant strengthening precipitates in all peak-aged samples are of the ,B' phase, and their size significantly influences the formation of cleavage cracks. This phenomenon is attributed to the shearing mechanism of precipitates. Specifically, the smaller ,B' precipitates formed under the aging temperature of 175-200 degrees C are susceptible to dislocation shearing, leading to the formation of cleavage cracks. In contrast, the larger size of ,B' precipitates formed under the aging temperature of 225-250 degrees C provides resistance to shearing, resulting in the restrained formation of cleavage cracks and ultimately contributing to the enhancement of the ultimate tensile strength.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Natural Science Foundation of China[52271107] ; National Natural Science Foundation of China[51701218] ; Natural Science Foundation of Shandong Province[ZR2021ME241] ; Natural Science Foundation of Liaoning Province[2020 -MS -004] ; Bintech-IMR RD Program[GYY- JSBU-2022-012] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001124473400001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Natural Science Foundation of Liaoning Province ; Bintech-IMR RD Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yan, Hong; Chen, Rongshi |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China 4.Beijing Inst Space Long March Vehicle, Beijing 100076, Peoples R China 5.Xi An Jiao Tong Univ, Ctr Adv Mat Performance Nanoscale CAMP Nano, Xian 710049, Peoples R China 6.Xi An Jiao Tong Univ, HARCC, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 7.Binzhou Inst Technol, Key Lab Adv Aluminium Mat & Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chunxiao,Wei, Jianxiong,Jin, Jianfeng,et al. The effect of precipitates on the fracture behavior and tensile properties of Mg-14Gd-0.5Zr (wt.%) alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,180:226-242. |
| APA | Li, Chunxiao.,Wei, Jianxiong.,Jin, Jianfeng.,Yan, Hong.,Shan, Zhiwei.,...&Chen, Rongshi.(2024).The effect of precipitates on the fracture behavior and tensile properties of Mg-14Gd-0.5Zr (wt.%) alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,180,226-242. |
| MLA | Li, Chunxiao,et al."The effect of precipitates on the fracture behavior and tensile properties of Mg-14Gd-0.5Zr (wt.%) alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 180(2024):226-242. |
入库方式： OAI收割
来源：金属研究所
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