Hot deformation behavior and optimization of processing parameters of a typical high-strength Al–Mg–Si alloy

2016 ◽  
Vol 90 ◽  
pp. 1151-1158 ◽  
Author(s):  
Xizhou Kai ◽  
Cun Chen ◽  
Xiafei Sun ◽  
Chunmei Wang ◽  
Yutao Zhao
Keyword(s):  
Hot Deformation ◽  
Deformation Behavior ◽  
High Strength ◽  
Processing Parameters ◽  
Hot Deformation Behavior

scholarly journals Hot Deformation Behavior Considering Strain Effects and Recrystallization Mechanism of an Al-Zn-Mg-Cu Alloy

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1743 ◽  
Author(s):  
Lei Luo ◽  
Zhiyi Liu ◽  
Song Bai ◽  
Juangang Zhao ◽  
Diping Zeng ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Processing Parameters ◽  
Strain Rate Range ◽  
Hot Compression ◽  
Processing Maps ◽  
Hot Deformation Behavior ◽  
Recrystallization Mechanism ◽  
Cu Alloy

The hot deformation behavior of an Al-Zn-Mg-Cu alloy was investigated by hot compression test at deformation temperatures varying from 320 to 440 °C with strain rates ranging from 0.01 to 10 s−1. The results show that the Mg(Zn, Cu)2 particles as a result of the sufficient static precipitation prior to hot compression have an influence on flow softening. A constitutive model compensated with strain was developed from the experimental results, and it proved to be accurate for predicting the hot deformation behavior. Processing maps at various strains were established. The microstructural evolution demonstrates that the dominant dynamic softening mechanism stems from dynamic recovery (DRV) and partial dynamic recrystallization (DRX). The recrystallization mechanism is continuous dynamic recrystallization (CDRX). The microstructure observations are in good agreement with the results of processing maps. On account of the processing map and microstructural observation, the optimal hot processing parameters at a strain of 0.6 are at deformation temperature range of 390–440 °C and strain rate range of 0.010–0.316 s−1 with a peak efficiency of 0.390.

scholarly journals Determining Hot Deformation Behavior of an Advance High Strength Steel (AHSS) by Means of Dynamic Processing Maps

2019 ◽  
Vol 59 (1) ◽  
pp. 176-185 ◽  
Author(s):  
Xiang Gao ◽  
Démian Ruvalcaba ◽  
Lu Han ◽  
HongXiang Li ◽  
Begoña Santillana ◽  
...  
Keyword(s):  
Hot Deformation ◽  
High Strength Steel ◽  
Deformation Behavior ◽  
High Strength ◽  
Processing Maps ◽  
Hot Deformation Behavior ◽  
Dynamic Processing

Study on Hot Deformation Behavior of 97# High Strength Rod

2012 ◽  
Vol 159 ◽  
pp. 322-325
Author(s):  
Hong Bin Li ◽  
Fang Fang
Keyword(s):  
Hot Deformation ◽  
Deformation Behavior ◽  
Static Recrystallization ◽  
Volume Fraction ◽  
High Strength ◽  
Avrami Equation ◽  
Recrystallization Process ◽  
Hot Deformation Behavior ◽  
Deformation Behaviors ◽  
Gleeble 3500

the hot deformation behaviors of 97# High Strength Rod was investigated through double-hit compression experiments using Gleeble 3500 thermal-mechanical similar within the temperature range of 850~1100°C, the strain rate of 5 s-1 and the interval range of 1-100s, the softening fractiong at different pass interval and deforming temperature was determined and analyzed. The results show that when pass intervals is the same, as deformation temperature increase, the volume fraction of static recrystallization of 97# High Strength Rod increases and the recrystallization process is enchanced. Activation energy of austenite static recrystallization of 97# High Strength Rod is 100.476 kJ/mol. The kinetic equation of static recrystallization of 97# High Strength Rod by avrami equation wan obtained.

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