Particle effects on recrystallization in magnesium-manganese alloys: Particle-stimulated nucleation

被引：726
|
作者：
Robson, J. D. [1 ]
Henry, D. T. [1 ]
Davis, B. [2 ]
机构：
[1] Manchester Mat Sci Ctr, Manchester M1 7HS, Lancs, England
[2] Magnesium Elektron N Amer, Madison, IL 62060 USA
来源：
ACTA MATERIALIA | 2009年 / 57卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
Magnesium alloys; Recrystallization; Particle-stimulated nucleation (PSN); DEFORMATION; DUCTILITY; STRENGTH;
D O I：
10.1016/j.actamat.2009.02.032
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of large (> 1 mu m diameter) particles oil the recrystallization behaviour of magnesium alloys deformed ill plane strain compression has been studied. Deformation zones characterized by a misorientation gradient were observed surrounding large particles. which were similar to those seen in other alloys where particle-stimulated nucleation (PSN) of recrystallization occurs. During annealing, new grains formed by PSN, but only at a small fraction of the coarse particles. Recrystallization was instead dominated by growth of existing dynamically recrystallized grains and nucleation of new grains from the deformed grain mantle region. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：2739 / 2747
页数：9
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