Recrystallization and texture evolution of cold-rolled AZ31 Mg alloy treated by rapid thermal annealing

2016 ◽  
Vol 656 ◽  
pp. 272-277 ◽  
Author(s):  
Yanbin Jiang ◽  
Lei Guan ◽  
Guoyi Tang
2007 ◽  
Vol 539-543 ◽  
pp. 1713-1718 ◽  
Author(s):  
Shi Hoon Choi ◽  
B.J. Kim ◽  
S.I. Kim ◽  
U.S. Joon

Uniaxial compression tests on hot-rolled AZ31 Mg alloy were carried out at 200°C. In order to investigate the evolution of texture during plastic deformation, cylindrical specimens were compressed to the rolling and normal directions. Experimental investigation reveals that work hardening and texture evolution are strongly dependent on the loading direction. The occurrence of deformation twinning was revealed by the observation of microtexture using electron backscatter diffraction (EBSD). A visco-plastic self-consistent (VPSC) polycrystal model was used to simulate the texture evolution during the uniaxial compression. The texture evolution induced by crystallographic slip and deformation twinning can be explained by the relative activity of each deformation modes.


2005 ◽  
Vol 475-479 ◽  
pp. 545-548 ◽  
Author(s):  
Hyo Tae Jeong ◽  
Woo Jin Kim

Microstructure and texture evolution in the AZ31 Mg alloy subject to equal channel angular pressing (ECAP) have been investigated and correlated with the mechanical properties. When AZ31 Mg alloy was ECAPed up to 8 passes following the route Bc, grain refinement occurred effectively. Texture was also changed during ECAP. The original fiber texture of the extruded AZ31 Mg alloy changed to a new texture component of ] 1 3 2 5 )[ 1 1 01 ( , and the texture of ] 1 3 2 5 )[ 1 1 01 ( orientation was rotated to ] 0 2 5 7 )[ 6 4 13 ( orientation after 6-pass ECAP process. The variation of the strength with the pass number was explained by the texture and grain size. The strength data of AZ31 Mg alloys followed the standard Hall-Petch relationship when the similar texture was retained during the ECAP process. Otherwise the effect of texture on strength was dominant over the strengthening due to grain refinement.


2014 ◽  
Vol 599 ◽  
pp. 1-8 ◽  
Author(s):  
Sushil K. Mishra ◽  
Shashank M. Tiwari ◽  
Jon T. Carter ◽  
Asim Tewari

2007 ◽  
pp. 1780-1783
Author(s):  
Jae Seol Lee ◽  
Hyeon Taek Son ◽  
Ik Hyun Oh ◽  
Jae Ik Cho ◽  
Chang Seog Kang ◽  
...  

2019 ◽  
Vol 7 (1) ◽  
pp. 124-133 ◽  
Author(s):  
Fadi Abouhilou ◽  
Abdelkader Hanna ◽  
Hiba Azzeddine ◽  
Djamel Bradai

2010 ◽  
Vol 654-656 ◽  
pp. 1195-1200 ◽  
Author(s):  
Ren Long Xin ◽  
Bo Li ◽  
Qing Liu

In this study, a well-textured AZ31 Mg alloy sheet was friction stir (FS) processed, and the microstructure and texture evolution in various regions of the processed alloy were examined by optical microscopy (OM) and electron back scatter diffraction (EBSD). The results showed that the grain size in the FS zone was significantly refined compared to that in the base material (BM). The average grain size in the thermomechanically affected zone (TMAZ) and heat-affected zone (HAZ) was comparable with that in the BM. There is a gradual change of local texture from BM to FS zone due to plastic flow together with heating input during the FS processing. The <0002> direction was roughly parallel to the cylindrical pin surface normal of the FS zone. The <0002> direction in the HAZ is similar to that in the BM, but more diffuse. The <0002> direction in the TMAZ was tilted 25~30o away from the ND and there is a distinct boundary between the FS zone and TMAZ at the advancing side which introduced an incompatibility between the FS zone and TMAZ. This might explain the fact that the transverse FS processed Mg alloys commonly fracture at the advancing side during tensile tests.


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