Open AccessExtrusion Forming Process and Microstructure of Mg-3Al-1Zn Alloy
Author(s) -
Qian Fang,
Qing Sun
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/612/3/032056
Subject(s) - extrusion , materials science , alloy , ultimate tensile strength , microstructure , metallurgy , elongation , ductility (earth science) , composite material , creep
In this paper, extrusion treatment of Mg-3Al-1Zn alloy treated with casting and homogenizing was carried out, the effects of extrusion temperature and extrusion ratio on the strength and ductility of the alloy were investigated, and the action mechanism was discussed. The results show that both before extrusion or after, the tensile strength of Mg-3Al-1Zn alloy after the treatment are reduced to some extent, while the elongation increases significantly. At the same extrusion ratio, when the extrusion temperature rises from 250°C to 450°C, the tensile strength of cast alloy is higher than that of uniform state. At lower temperature and larger extrusion ratio, Mg-3Al-1Zn alloy has better plasticity. With the increase of extrusion ratio, the tensile strength and elongation of Mg-3Al-1Zn alloy show a rising trend.