Premium
Improving Formability of Mg–Ca–Zr Sheet Alloy by Microalloying of Zn
Author(s) -
Bian Ming Zhe,
Zeng Zhuo Ran,
Xu Shi Wei,
Zhu Su Ming,
Zhu Yu Man,
Davies Christopher Huw John,
Birbilis Nick,
Nie Jian Feng
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600293
Subject(s) - formability , materials science , alloy , metallurgy , ductility (earth science) , composite material , creep
Addition of 0.1 at% Zn to the Mg–0.5Ca–0.1Zr alloy is found to significantly improve the stretch formability and ductility. The remarkable improvement in the stretch formability and ductility is attributable to the enhanced grain boundary cohesion and weakened texture. The as‐annealed Mg–0.5Ca–0.1Zr–0.1Zn alloy sheet shows a 0.2% proof strength of ≈134 MPa along the rolling direction, which is lower than that of as‐annealed AZ31 alloy sheet (≈147 MPa). However, by post‐forming ageing, the 0.2% proof strength of the Mg–0.5Ca–0.1Zr–0.1Zn alloy sheet is considerably increased to ≈201 MPa, exceeding that for the annealed AZ31 alloy sheet.