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Enhancing the Strength and Ductility in Mg–Zn–Ce Alloy through Achieving High Density Precipitates and Texture Weakening
Author(s) -
Du Yuzhou,
Zheng Mingyi,
Qiao Xiaoguang,
Jiang Bailing
Publication year - 2017
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.201700487
Subject(s) - materials science , alloy , microstructure , ductility (earth science) , texture (cosmology) , elongation , metallurgy , extrusion , composite material , ultimate tensile strength , creep , artificial intelligence , computer science , image (mathematics)
The microstructure with weak fiber texture and dense precipitates is designed and produced through extrusion and subsequent ageing treatment of Mg–6Zn–0.2Ce (wt%) alloy. Results show that ageing treatment improves the strength of the as‐extruded Mg–6Zn–0.2Ce (wt%) alloy and retains the ductility. The peak‐aged alloy exhibits a good combination of strength and ductility, which is superior to the commercial Mg alloy. The yield strength and elongation to fracture of the peak‐aged Mg–6Zn–0.2Ce (wt%) alloy are 225 MPa and 32.1%, respectively. The strength improvement of the peak‐aged alloy is attributed to dense rod‐like precipitates, and the superior ductility is mainly due to weaker texture and homogeneous microstructure.