Abstract
Creep rupture tests were performed for three kinds of Mg–Al–Ca die-cast alloys at temperatures between 423 and 498 K, and the creep rupture lives were evaluated by using the Larson–Miller parameter (LMP). The value of LMP is uniquely described by the logarithm of the applied stress for the alloys, when the Larson–Miller constant is chosen as 20. The applied stress and the LMP value follow a linear relationship below the yield stress, which can be utilized to predict the long-term creep rupture life for the alloys under a given condition of temperature and applied stress.
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