Recrystallization behavior of a supersaturated Al-Mn alloy

被引：33
作者：
Liu, W. C. [1 ]
Radhakrishnan, B. [2 ]
机构：
[1] Yanshan Univ, Coll Mat Sci & Engn, Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
MATERIALS LETTERS | 2010年 / 64卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Metals and alloys; Deformation; Microstructure; Recrystallization; Concurrent precipitation; AA-5182; ALUMINUM-ALLOYS; CONTINUOUS-CAST AA5052; COLD-ROLLED DC; TEXTURE EVOLUTION; DIRECT-CHILL; PRECIPITATION;
D O I：
10.1016/j.matlet.2010.05.046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of concurrent precipitation on recrystallization behavior during the isothermal annealing of a supersaturated and deformed Al-Mn alloy was investigated. It is found that concurrent precipitation strongly affects the recrystallization behavior of this alloy. At low temperatures, concurrent precipitation retards recrystallization and results in large flat grains. The size of recrystallized grains decreases significantly with increasing temperature. The kinetics of recrystallization was determined by measurements of hardness. The JMAK exponent decreases from 3.0 to 0.8 as the annealing temperature increases from 371 degrees C to 427 degrees C. The activation energy for recrystallization of the alloy is about 456 kJ/mol. Concurrent precipitation enhances the activation energy for recrystallization of aluminum alloys. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1829 / 1832
页数：4
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