HOT DEFORMATION OF 6XXX SERIES ALUMINIUM ALLOYS

被引：10
|
作者：
Mrowka-Nowotnik, G. [1 ]
Sieniawski, J. [1 ]
Kotowski, S. [1 ]
Nowotnik, A. [1 ]
Motyka, M. [1 ]
机构：
[1] Rzeszow Univ Technol, Dept Mat Sci, PL-35959 Rzeszow, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2015年 / 60卷 / 02期
关键词：
Aluminum alloy; Hot deformation; Microstructural evolution; Activation energy; INTERMETALLIC PHASES; PRECIPITATION; SI;
D O I：
10.1515/amm-2015-0263
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The hot deformation behavior of the 6xxx aluminum alloys was investigated by compression tests in the temperature range 100 degrees C-375 degrees C and strain rate range 10(-4)s(-1) and 4x10(-4)s(-1) using dilatometer DIL 805 BAHR Thermoanalyse equipped with accessory attachment deformation allows the process to execute thermo-plastic in vacuum and inert gas atmosphere. Associated microstructural changes of characteristic states of examined alloys were studied by using the transmission electron microscope (TEM). The results show that the stress level decreases with increasing deformation temperature and deformation rate. And was also found that the activation energy Q strongly depends on both, the temperature and rate of deformation. The results of TEM observation showing that the dynamic flow softening is mainly as the result of dynamic recovery and recrystallization of 6xxx aluminium alloys.
引用
收藏
页码：1079 / 1084
页数：6
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