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Erschienen in:
2016 | OriginalPaper | Buchkapitel
The Effect of Precipitate State on the Creep Performance of Mg-Sn Alloys
verfasst von : Mark Gibson, Xi-Ya Fang, Colleen Bettles, Christopher Hutchinson
Erschienen in: Magnesium Technology 2011
Verlag: Springer International Publishing
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The Mg-Sn system has recently received attention as a potential basis for the development of creep resistant alloys. This is an age hardenable system with the potential to form ~10 vol. % of Mg2Sn. The Mg2Sn precipitate has a high melting temperature (~770 °C) and alloys based on this system might be thought to show some promise for use in applications requiring elevated temperature creep resistance [1]. The age hardening response of the binary alloy is only modest, despite the large volume fraction of precipitates that may be formed [2]. The reason is that the precipitates form with a relatively coarse distribution, in laths parallel to the basal planes of the magnesium matrix. This configuration is relatively inefficient at impeding dislocation motion [3].