Open AccessEffect of heat treatment on microstructure, hardness and electrical conductivity of as-extruded ZK80 Mg alloy
Author(s) -
Cao Fenghong,
Zhi Qin,
Chunqi Chang,
Yaohui Xu,
Lanxiang Huang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1699/1/012030
Subject(s) - rockwell scale , microstructure , alloy , materials science , electrical resistivity and conductivity , conductivity , metallurgy , indentation hardness , composite material , optical microscope , scanning electron microscope , chemistry , electrical engineering , engineering
The microstructure, hardness and electrical conductivity of as-extruded ZK80 Mg alloy were tested and analyzed by means of microscope, XRD, electrical conductivity and Rockwell hardness tester. The results show that: as-extruded ZK80 Mg alloy has good aging strengthening effect, the change trend of hardness and electrical conductivity of the alloy is the same, that is, the hardness and electrical conductivity of that alloy show a strong linear correlation, with the extension of holding time, the hardness and conductivity increase in an oscillatory manner, and then decrease after reaching the peak value. The relationship between hardness and conductivity is g = 1.06418 h -52.29795, and the experimental fitting effect is good.