Role of compression direction on recrystallization behavior and texture evolution during hot deformation of extruded ZK60 magnesium alloy

2017 ◽  
Vol 702 ◽  
pp. 274-289 ◽  
Author(s):  
Amir Hadadzadeh ◽  
Mary A. Wells ◽  
Sugrib Kumar Shaha ◽  
Hamid Jahed ◽  
Bruce W. Williams
Keyword(s):  
Magnesium Alloy ◽  
Hot Deformation ◽  
Texture Evolution ◽  
Recrystallization Behavior ◽  
Compression Direction ◽  
Zk60 Magnesium Alloy

Strain-dependent constitutive analysis of hot deformation and hot workability of T4-treated ZK60 magnesium alloy

2013 ◽  
Vol 19 (4) ◽  
pp. 651-665 ◽  
Author(s):  
Hui Yu ◽  
Huashun Yu ◽  
Guanghui Min ◽  
Sung Soo Park ◽  
Bong Sun You ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Hot Deformation ◽  
Hot Workability ◽  
Constitutive Analysis ◽  
Zk60 Magnesium Alloy ◽  
Strain Dependent

Analysis of Recrystallization Behavior of Hot-Deformed Austenite Reconstructed from EBSD Orientation Maps of Lath Martensite

2016 ◽  
Vol 879 ◽  
pp. 2389-2394
Author(s):  
Manabu Kubota ◽  
Kohsaku Ushioda ◽  
Goro Miyamoto ◽  
Tadashi Furuhara
Keyword(s):  
Hot Deformation ◽  
Lath Martensite ◽  
New Method ◽  
Reconstruction Method ◽  
Low Alloy Steels ◽  
Recrystallization Behavior ◽  
Compression Direction ◽  
Orientation Map ◽  
Alloy Steels ◽  
Parent Austenite

The recrystallization behavior of hot-deformed austenite of 0.55% C low alloy steels at 900, 850 and 800°C was investigated by a conventional double-hit compression test and a new method which reconstructs the parent austenite orientation map from an EBSD (electron backscattering diffraction) orientation map of daughter lath martensite. The new method can clearly reconstruct the parent austenite structure at high temperature from the daughter lath martensite structure and we can obtain the information on crystal orientation of the work-hardened austenite. It was revealed that recrystallization of austenite at 800 °C is significantly retarded by the addition of 0.1% V. The strong texture of <110> parallel to the compression direction develops just after the hot-deformation, but this texture becomes weaker as the recrystallization progresses. By applying the reconstruction method, it becomes possible to evaluate various phenomena related to the hot-deformation of austenite

scholarly journals Texture evolution during Isothermal compression process of Ti-22Al-25Nb alloy in B2 phase region

2020 ◽  
Vol 321 ◽  
pp. 12036
Author(s):  
Haoyuan Ma ◽  
Weidong Zeng ◽  
Xiongxiong Gao ◽  
Youping Zheng
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Deformation ◽  
Dynamic Recovery ◽  
Texture Evolution ◽  
Phase Region ◽  
Fiber Axis ◽  
Isothermal Compression ◽  
Compression Process ◽  
Compression Direction ◽  
Grain Orientations

In the present work, the hot deformation behavior, dynamic recovery, dynamic recrystallization and texture evolution of Ti-22Al-25Nb alloy on the conditions of 1100°C with four different thickness reductions (35%, 50%, 65% and 80%) are investigated by isothermal compression testing on Gleeble-3500 thermo-mechanical simulator. The strain rate is 0.1mm/s-1. Subsequently, metallographic observation and EBSD analysis are carried out. The results show that during the hot deformation, the dynamic recovery (DRV) and dynamic recrystallization (DRX) strongly affect the microstructure and texture evolution. It is observed that with the strain increasing, the intensity of ηbcc-fiber increases firstly (crystallographic fiber axis <100> parallel to the compression direction). When the thickness reduction reaches to 80%, the intensity of <001> pole becomes stronger expectedly. Whereas the ηbcc-fiber transform into cube components ({100} <001>) unexpectedly. In addition, as the strain increases through 35%-80%, the fraction of large misorientation grain boundaries and fraction of DRX grains gradually increase due to continuous recrystallization. The evolution mechanism of grain orientations and texture during the DRX process will be discussed.

Modeling of strain hardening and dynamic recrystallization of ZK60 magnesium alloy during hot deformation

2012 ◽  
Vol 22 (2) ◽  
pp. 246-254 ◽  
Author(s):  
Yun-bin HE ◽  
Qing-lin PAN ◽  
Qin CHEN ◽  
Zhi-ye ZHANG ◽  
Xiao-yan LIU ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Dynamic Recrystallization ◽  
Strain Hardening ◽  
Hot Deformation ◽  
Zk60 Magnesium Alloy
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