Enhanced age-hardening behaviour in Mg–4 wt.% Zn micro-alloyed with Ca

Enhanced age-hardening behaviour in Mg–4 wt.% Zn micro-alloyed with Ca

In the Mg–Zn system it has been shown that the addition of trace amounts of Ca can have a substantial positive influence on the precipitation process during artificial ageing. The microstructure of the modified alloy is more complex and has a much refined precipitate structure that is very stable fo...

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Veröffentlicht in:Scripta materialia 2004-08, Vol.51 (3), p.193-197
Hauptverfasser: Bettles, C.J., Gibson, M.A., Venkatesan, K.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
High temperature stability
Magnesium alloy
Metals. Metallurgy
Microstructure
Transmission electron microscopy
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Beschreibung
Zusammenfassung:In the Mg–Zn system it has been shown that the addition of trace amounts of Ca can have a substantial positive influence on the precipitation process during artificial ageing. The microstructure of the modified alloy is more complex and has a much refined precipitate structure that is very stable for prolonged periods at elevated temperatures (⩽450 K), leading to a significant improvement in creep resistance.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.04.020