Enhanced age hardening response and creep resistance of Mg–Gd alloys containing Zn

• DOI: 10.1016/j.scriptamat.2005.07.004
• Publication Date: 2005-07-26T20:17:06Z
• Authors: J.F. Nie; X. Gao; S.M. Zhu
• Keywords: 0203 mechanical engineering; 02 engineering and technology

Abstract Mg–6Gd–0.6Zr (wt.%) alloy exhibits little age hardening during isothermal ageing treatments and has low creep strengths. Additions of 1–2 wt.% Zn to this alloy significantly enhance the age hardening response and the creep strength. The remarkable improvement in strength and creep resistance is associated with a uniform and dense distribution of basal precipitate plates that are not observed in the Zn-free alloy.