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

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

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 asso...

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Veröffentlicht in:Scripta materialia 2005-11, Vol.53 (9), p.1049-1053
Hauptverfasser: Nie, J.F., Gao, X., Zhu, S.M.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Creep
Creep resistance
Exact sciences and technology
Magnesium alloys
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Mg–Gd–Zn–Zr
Precipitation hardening
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Zusammenfassung: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.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2005.07.004