Open AccessHardness and Conductivity of Die Forged ZYK530 Magnesium Alloy
Author(s) -
Cao Fenghong,
Yaohui Xu,
Chen Chang,
Zhi Qin,
Chao Deng
Publication year - 2022
Publication title -
medžiagotyra
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.293
H-Index - 22
eISSN - 2029-7289
pISSN - 1392-1320
DOI - 10.5755/j02.ms.28687
Subject(s) - indentation hardness , materials science , conductivity , microstructure , alloy , diffractometer , metallurgy , vickers hardness test , electrical resistivity and conductivity , magnesium alloy , die (integrated circuit) , composite material , scanning electron microscope , electrical engineering , chemistry , engineering , nanotechnology
The relationship among the microstructure, hardness and electrical conductivity of the as-forged ZYK530 Mg alloy after heat treatment was analyzed and studied using a microscope, X-Ray Diffractometer, eddy current conductivity meter, and Vickers microhardness tester, to explore optimum heat treatment process of ZYK530 Mg alloy. The results show that: with the prolongation of holding time, the electrical conductivity and microhardness show the same change trend, both of which show an oscillatory upward trend, and then decrease in an oscillatory downward trend after reaching the peak value. There is a linear positive correlation between the conductivity and the hardness, and the fitting results of the conductivity and hardness are in good agreement with the measured results; combined with the actual production, when the heat-treatment is 480 ℃ × 8 h + 220 ℃ × 3 h, the highest hardness is 79.2 HV, the electroconductivity is 36.2%IACS, and the comprehensive performance is the best, which is the best heat treatment process.