Static recrystallization behavior of hot-deformed magnesium alloy AZ31 during isothermal annealing
The static recrystallization of hot-deformed magnesium alloy AZ31 during isothermal annealing was studied at temperature of 503 K by optical and SEM/EBSD metallographic observation. The grain size change during isothermal annealing is categorized into three regions, i.e. an incubation period for gra...
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Published in | Transactions of Nonferrous Metals Society of China Vol. 20; no. 7; pp. 1269 - 1274 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.07.2010
School of Materials Science and Engineering, Central South University, Changsha 410083, China%Department of Mechanical Engineering and Intelligent Systems, University of Electro Communications,Tokyo 182-8585, Japan |
Subjects | |
Online Access | Get full text |
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Summary: | The static recrystallization of hot-deformed magnesium alloy AZ31 during isothermal annealing was studied at temperature of 503 K by optical and SEM/EBSD metallographic observation. The grain size change during isothermal annealing is categorized into three regions, i.e. an incubation period for grain growth, rapid grain coarsening, and normal grain growth. The number of fine grains per unit area, however, decreases remarkably even in incubation period. This leads to grain coarsening taking place continuously in the whole period of annealing. In contrast, the deformation texture scarcely changes even after full annealing at high temperatures. It is concluded that the annealing processes operating in hot-deformed magnesium alloy with continuous dynamic recrystallized grain structures can be mainly controlled by grain coarsening without texture change, that is, continuous static recrystallization. |
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Bibliography: | continuous recrystallization grain growth magnesium alloy 43-1239/TG texture AZ31 annealing TG142.33 TG146.22 magnesium alloy; AZ31; annealing; continuous recrystallization; grain growth; texture ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1003-6326 |
DOI: | 10.1016/s1003-6326(09)60289-2 |