scholarly journals THE DEFORMATION OF AZ31 MAGNESIUM ALLOY DURING WARM CONSTRAINED GROOVE PRESSING

2019 ◽  
Vol 25 (1) ◽  
pp. 48 ◽  
Author(s):  
Hue Thi Hong Dang ◽  
Thuy Thi Pham ◽  
Ngung Minh Dao ◽  
Quang Pham ◽  
Valery Y. Shchukin

A magnesium alloy AZ31 as plate of dimensions (60 x 60 x 3) mm has been constrained groove pressed (CGP) four deformation passes (16 pressings) at 250 oC by simulation and expremental. On the basis of the analysis of calculation results about the deformation distribution in the alloy AZ31 workpiece the mechanism for its microstructure evolution during the severe plastic deformation (SPD) process was partly clarified. On the other hand, deformation heterogeneity distribution developed in plate by applying CGP caused the evolution of a non-uniform microstructure. The TEM microstructure analysis results provided clear evidence that across the plate both the banded deformed microstructure where dislocation cell structure and/or partially or fully recovered polygonized subgrain microstructure are present. The recovering dynamic and local polygonization process contributes significantly to the formation of ultra-fine materials (UFG) microstructure.

2021 ◽  
Vol 25 (1) ◽  
pp. 48-54
Author(s):  
Hue Thi Hong Dang ◽  
Pham Thi Thuy ◽  
Dao Minh Ngung ◽  
Pham Quang ◽  
Valery Y. Shchukin

A magnesium alloy AZ31 as plate of dimensions (60 x 60 x 3) mm has been constrained groove pressed (CGP) four deformation passes (16 pressings) at 250 oC by simulation and experiments. On the basis of the analysis of calculation results about the deformation distribution in the alloy AZ31 workpieces, the mechanism for its microstructure evolution during the severe plastic deformation (SPD) process was partly clarified. On the other hand, deformation heterogeneity distribution developed in the workpieces by applying CGP caused the evolution of a non-uniform microstructure. The TEM microstructure analysis results provided clear evidence that across the plate both the banded deformed microstructure where dislocation cell structure and/or partially or fully recovered polygonized subgrain microstructure are present. The recovering dynamic and local polygonization process contributes significantly to the formation of ultra-fine materials (UFG) microstructure.


2019 ◽  
Vol 25 (1) ◽  
pp. 48-54
Author(s):  
Hue Thi Hong Dang ◽  
Pham Thi Thuy ◽  
Dao Minh Ngung ◽  
Pham Quang ◽  
Valery Y. Shchukin

A magnesium alloy AZ31 as plate of dimensions (60 x 60 x 3) mm has been constrained groove pressed (CGP) four deformation passes (16 pressings) at 250 oC by simulation and experiments. On the basis of the analysis of calculation results about the deformation distribution in the alloy AZ31 workpieces, the mechanism for its microstructure evolution during the severe plastic deformation (SPD) process was partly clarified. On the other hand, deformation heterogeneity distribution developed in the workpieces by applying CGP caused the evolution of a non-uniform microstructure. The TEM microstructure analysis results provided clear evidence that across the plate both the banded deformed microstructure where dislocation cell structure and/or partially or fully recovered polygonized subgrain microstructure are present. The recovering dynamic and local polygonization process contributes significantly to the formation of ultra-fine materials (UFG) microstructure.


2014 ◽  
Vol 9 (2) ◽  
pp. 249-257
Author(s):  
Chuanxing Li ◽  
Yanling Zhang ◽  
Dong Chen ◽  
Guangfeng Duan ◽  
Zhenyin Liu ◽  
...  

2021 ◽  
Vol 807 ◽  
pp. 140821
Author(s):  
Kai Zhang ◽  
Zhutao Shao ◽  
Christopher S. Daniel ◽  
Mark Turski ◽  
Catalin Pruncu ◽  
...  

Author(s):  
Kenneth J. Tam ◽  
Matthew W. Vaughan ◽  
Luming Shen ◽  
Marko Knezevic ◽  
Ibrahim Karaman ◽  
...  

2003 ◽  
Vol 439 ◽  
pp. 227-232
Author(s):  
Jae Wan Song ◽  
Chang Won Kim ◽  
Jeong Whan Han ◽  
Mok Soon Kim ◽  
Sun Keun Hwang

2003 ◽  
Vol 43 (15) ◽  
pp. 1553-1559 ◽  
Author(s):  
Fuh-Kuo Chen ◽  
Tyng-Bin Huang ◽  
Chih-Kun Chang

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