Effect of Ca additions on the microstructure and creep properties of a cast Mg–Al–Mn magnesium alloy

The microstructure and creep properties of cast Mg–6Al–0.3Mn (AM60) alloys containing 0.5, 1.2, and 2.0wt% Ca were investigated by impression creep testing method in the stress range of 150–750MPa at temperatures from 423 to 523K, corresponding to 0.458 8 and activation energies of about 129–165kJ/...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2017-07, Vol.700, p.438-447
Hauptverfasser:	Kondori, B., Mahmudi, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Activation energy Alloys Aluminum base alloys Ca addition Calcium Creep (materials) Creep mechanism Creep strength Deformation Deformation mechanisms Deformation resistance Diffusion Dislocation mobility Impression creep Magnesium Magnesium alloy Magnesium base alloys Manganese base alloys Materials creep Microstructure Stresses Test procedures Thermal stability
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Beschreibung
Zusammenfassung:	The microstructure and creep properties of cast Mg–6Al–0.3Mn (AM60) alloys containing 0.5, 1.2, and 2.0wt% Ca were investigated by impression creep testing method in the stress range of 150–750MPa at temperatures from 423 to 523K, corresponding to 0.458 8 and activation energies of about 129–165kJ/mol that are slightly higher than that of the self-diffusion of magnesium atoms.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2017.06.007