[1]王杰芳,张铎,郭巧能,等.Zn对Al-Cu-Mg-Ag合金组织和常温力学 性能的影响[J].郑州大学学报(工学版),2017,38(03):6-9.[doi:10.13705/j.issn.1671-6833.2016.06.020]
　Wang Jiefang,Zhang Duo,Guo Qiaoneng,et al.The form of Zn in the as-cast Al-Cu-Mg-Ag alloy and the influence on the alloy[J].Journal of Zhengzhou University (Engineering Science),2017,38(03):6-9.[doi:10.13705/j.issn.1671-6833.2016.06.020]
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Zn对Al-Cu-Mg-Ag合金组织和常温力学 性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
38
期数:
2017年03期
页码:
6-9
栏目:
出版日期:
2017-05-28

文章信息/Info

Title:
The form of Zn in the as-cast Al-Cu-Mg-Ag alloy and the influence on the alloy
作者:
王杰芳; 张铎; 郭巧能; 刘忠侠; 王明星
郑州大学材料物理教育部重点实验室,河南郑州,450001
Author(s):
Wang Jiefang; Zhang Duo; Guo Qiaoneng; Liu Zhongxia; Wang Mingxing
Key Laboratory of Materials Physics, Zhengzhou University, Ministry of Education, Zhengzhou, Henan 450001
关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2016.06.020
文献标志码:
A
摘要:
借助光学显微镜、差示量热扫描仪、扫描电镜,以及硬度、拉伸性能测试方法,分析了Zn元素对Al-Cu-Mg-Ag合金组织和常温力学性能的影响.结果表明:Zn的添加并未改变合金第二相的形态和成分,合金适宜的均匀化制度为510℃×24 h;Zn元素的添加加快了挤压态合金的初始时效反应速度,使合金的峰时效硬度由169 MHV提高到182 MHV,合金的室温拉伸强度和屈服强度分别提高了23 MPa和27 MPa,并且合金的伸长率仍然保持在14％以上的较高水平,其原因可能是Zn元素固溶于基体中,增大了合金的晶格畸变,致使合金硬度增加,并提高了合金的室温力学性能.
Abstract:
The effect of zinc on the microstructures and mechanical properties of an Al-Cu-Mg-Ag alloy was investigated using optical microscope,differential thermal scanners,scanning electron microscope,hardness and tensile property test.The results showed that the addition of Zn did not change the morphology and composition of the second phase,the best homogenization treatment of the alloy was 500 ℃ × 24 h.The peak aging hardness was increased from 169 MHV to 182 MHV,the tensile strength and yield strength at room temperature were increased by 23 MPa and 27 MPa,respectively.And the elongation of the alloy was still kept at a high level of 14％.The reason could be the solution of the zinc increase the crystal lattice distortion,and then lead to the improvement of the mechanical properties.
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