Grain growth in AZ31 alloy after uniaxial compression

The grain growth morphology,kinetics and texture change after uniaxial compression at 430 ℃ of an extruded AZ31 alloy were studied.The samples were loaded following two routes insuring two initial textures of the samples with compression direction parallel and normal to the extrusion direction.For b...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2010-12, Vol.20 (12), p.2215-2222
Main Authors: ABDESSAMEUD, S., AZZEDDINE, H., ALILI, B., BRADAI, D.
Format: Article
Language:English
Subjects:
Annealing
AZ31
AZ31合金
China
Compressing
Extrusion
Grain growth
Grain size
magnesium alloy
Surface layer
Texture
uniaxial compression
单轴压缩
挤压方向
晶粒尺寸
晶粒生长
生长动力学
生长形态
等温退火
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Summary:The grain growth morphology,kinetics and texture change after uniaxial compression at 430 ℃ of an extruded AZ31 alloy were studied.The samples were loaded following two routes insuring two initial textures of the samples with compression direction parallel and normal to the extrusion direction.For both initial textures,a stable grain size is attained upon isothermal annealing and the grain growth kinetics can be described by：dn= dRn＋kt with an n value of around 15.The annealing texture with grown grains is a retained hot deformation texture without emerging or strengthening other components.Abnormal grain growth is not observed for annealing time up to 10 000 h at 450℃.
ISSN:1003-6326
DOI:10.1016/S1003-6326(10)60631-0