Synchrotron Radiation Investigation of Twinning in Extruded Magnesium Alloy AZ3l

2005 ◽  
Vol 495-497 ◽  
pp. 1633-1638 ◽  
Author(s):  
Chris H.J. Davies ◽  
Sang Bong Yi ◽  
Jan Bohlen ◽  
Karl Ulrich Kainer ◽  
Heinz Günter Brokmeier
Keyword(s):  
Magnesium Alloy ◽  
Synchrotron Radiation ◽  
Mechanical Behaviour ◽  
Elastic Strain ◽  
Transverse Direction ◽  
Texture Evolution ◽  
Deformation Texture ◽  
Normal Direction ◽  
Az31 Magnesium Alloy

The crystallographic response to deformation – texture evolution, internal elastic strain, and twin evolution – was measured for three load/orientation variants for AZ31 magnesium alloy extrudate tested in-situ in a synchrotron beamline. Specimens were loaded in tension parallel to the extrudate transverse direction, in compression along the same axis, and in compression parallel to the extrudate normal direction. The crystallographic responses are correlated with the mechanical behaviour of the extrudate.

scholarly journals Texture Evolution and Anisotropy of Plastic Flow in Hot Compression of Extruded ZK60-T5 Magnesium Alloy Plate

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1170
Author(s):  
Chalasani Dharmendra ◽  
Mukesh Jain ◽  
Yellapregada Prasad ◽  
Kamineni Pitcheswara Rao
Keyword(s):  
Magnesium Alloy ◽  
Transverse Direction ◽  
Processing Map ◽  
Texture Evolution ◽  
Normal Direction ◽  
Hot Compression ◽  
Slip Systems ◽  
Alloy Plate ◽  
Pyramidal Slip ◽  
Pole Figures

The texture evolution during hot compression of extruded ZK60A-T5 magnesium alloy plate loaded along the extrusion direction (ED) and the normal direction (ND) has been examined with the help of pole figures obtained on specimens deformed in the ranges of 200 °C to 500 °C and 0.0003 s−1 to 10 s−1. The results are interpreted in terms of the operating slip systems and mechanisms identified based on processing maps developed for the above two initial specimen orientations. The processing map for the initial ED orientation exhibited three domains. In Domains 1 and 3, first-order pyramidal slip {10 1 ¯ l} <11 2 ¯ 0> occurs, while in Domain 2, second-order pyramidal slip {11 2 ¯ 2} <11 2 ¯ 3> occurs. The pole figures obtained on specimens deformed in Domains 1 and 3 are strikingly similar, indicating that the operating slip system controls the texture evolution. Compression in Domains 1 and 3 nearly randomizes the intense basal texture in the as-received specimens, while a new texture is generated in Domain 2 with basal poles at 45° to ND or transverse direction (TD). This new texture will promote basal slip when loaded in a transverse direction. When loaded in the normal direction (ND), the processing map exhibited four domains. In Domains 1 and 4, {10 1 ¯ l} <11 2 ¯ 3> slip occurs, while {11 2 ¯ 2} <11 2 ¯ 3> slip occurs in Domains 2 and 3. The pole figures obtained from specimens deformed in Domains 1 and 4 have similar features, while those deformed in Domains 2 and 3 exhibited similar features to one another, confirming that the operating slip systems control the texture development since they are the same in each pair. The compression along ND produces strong basal textures with the basal planes normal to the ED. The texture gets intensified with increased temperature of deformation and causes strong anisotropy in mechanical properties.

Deformation and texture evolution in AZ31 magnesium alloy during uniaxial loading

2006 ◽  
Vol 54 (2) ◽  
pp. 549-562 ◽  
Author(s):  
S.-B. Yi ◽  
C.H.J. Davies ◽  
H.-G. Brokmeier ◽  
R.E. Bolmaro ◽  
K.U. Kainer ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Texture Evolution ◽  
Uniaxial Loading ◽  
Az31 Magnesium Alloy

scholarly journals Influence of Continuous Bending Process on Texture Evolution and Mechanical Properties of AZ31 Magnesium Alloy

2017 ◽  
Vol 31 (3) ◽  
pp. 225-233 ◽  
Author(s):  
Ting-Zhuang Han ◽  
Guang-Sheng Huang ◽  
Lun Huang ◽  
Bin Jiang ◽  
Guan-Gang Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Texture Evolution ◽  
Az31 Magnesium Alloy ◽  
Bending Process ◽  
Continuous Bending

Study of twinning behaviors of rolled AZ31 magnesium alloy by interrupted in situ compressive tests

2016 ◽  
Vol 653 ◽  
pp. 108-114 ◽  
Author(s):  
Dewen Hou ◽  
Tianmo Liu ◽  
Dongfeng Shi ◽  
Huicong Chen ◽  
Hongbing Chen
Keyword(s):  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Compressive Tests

Effects of Cross-Rolling on Deformation Texture Evolution in Unalloyed Titanium

2016 ◽  
Vol 879 ◽  
pp. 2014-2019
Author(s):  
Osamu Umezawa ◽  
Norimitsu Koga
Keyword(s):  
Rolling Mill ◽  
Transverse Direction ◽  
Texture Evolution ◽  
True Strain ◽  
Rolling Direction ◽  
Deformation Texture ◽  
Fiber Texture ◽  
Cross Rolling ◽  
Flat Rolling ◽  
The Cross

Unalloyed titanium was rolled with 20% reduction in each pass at 293 K using a cross rolling mill, where the upper and lower rolling axes were skewed each other at an angle of 0, 5 or 10 degree with parallel position. Multi-pass flat-rolling was carried out without any lubricants up to the true strain of 1, where two kinds of rolling directions such as tandem (uni-direction for all passes) and reverse (opposite direction in every passes) were adopted. The strain of specimens was increased proportionally as higher passes regardless of the rolling conditions. The transverse direction (TD) split deformation texture in titanium was generally developed under the cross angle of 0 degree. In the present strips of tandem, a main orientation was identified as (-12-18)[10-10]. In the case of tandem with the cross angle of 5 degree, a fiber texture was developed along (-12-18). That is the reason why a rotation in the rolling direction (RD) was overlapped. In the case of reverse with the cross angle of 5 degree, the main orientation was separated into [10-10] and [2-311] that were corresponded to TD and RD splits, respectively.

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