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标题：Analysis of the creep response of a fine-grained magnesium-rare earths alloy produced by rapid solidification
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作者：S. Spigarelli ; E. Cerri ; E. Evangelista 等
期刊名称：Metallurgical Science and Tecnology
印刷版ISSN：0393-6074
出版年度：2013
卷号：16
期号：1
语种：English
出版社：Metallurgical Science and Tecnology
摘要：The creep response of a experimental Mg-Zn-Ca-Ce-La alloy produced by rapid solidification was investigated at temperatures ranging from 498 to 548K, under stresses from 7 to 50MPa. The creep curves exhibited a short primary region, during which the strain rate decreases, followed by a short minimum creep rate range, and by a very long tertiary stage. The analysis of the creep rate dependence on applied stress at different strain suggested that the creep mechanisms was cross slip on non-basal plane, or alternatively glide of dislocation on pyramidal slip system controlled by nucleation of kink motion.