Study of Processing Map and Effect of Hot Rolling on Mechanical Properties of Aluminum 5083 Alloy

被引：10
作者：
Rudra, Amitava [1 ,2 ]
Ashiq, Mohammad [1 ,2 ]
Tiwari, Jitendar Kumar [1 ,2 ]
Das, Satyabrata [3 ]
Dasgupta, Rupa [3 ]
机构：
[1] Acad Sci & Innovat Res AcSIR, Bhopal 462026, India
[2] CSIR Adv Mat & Proc Res Inst, Bhopal 462026, India
[3] Ex CSIR Adv Mat & Proc Res Inst, Bhopal 462026, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2020年 / 73卷 / 07期
关键词：
Hot deformation; Aluminum; Activation energy; Processing map; Rolling; Mechanical property; MG (5083)/AL(2)O(3)P COMPOSITES; MICROSTRUCTURAL EVOLUTION; DEFORMATION-BEHAVIOR; DYNAMIC RECRYSTALLIZATION; TENSILE PROPERTIES; TEMPERATURE; TEXTURE; (5083)/SICP; PARTICLES; WORKING;
D O I：
10.1007/s12666-020-02003-w
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Hot deformation behavior of aluminum 5083 alloy was studied based on the compression test done up to true strain 0.5 in the temperature range of 473-773 K and strain rate range of 0.01-10 s(-1). The Arrhenius equations were used to evaluate the average activation energy for deformation. Processing map was developed to identify the optimum, safe and unsafe zones for processing based on the compression data. Electron backscattered diffraction (EBSD) and scanning electron microscopy images revealed the underlying micro-mechanisms at various deformation conditions. Varying fraction of dynamic recrystallization was found to coexist with dynamic recovery at high deformation temperature and different strain rates. Based on the safe deformation zone, hot rolling was attempted and up to 80% reduction of initial thickness was achieved. EBSD analysis showed that the percentage of dynamically recrystallized grains increased with increment in rolling reduction. Progressive and substantial increment in yield strength, ultimate tensile strength, ductility and bulk hardness was achieved with increment in rolling reductions.
引用
收藏
页码：1809 / 1826
页数：18
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