Texture evolution, deformation mechanism and mechanical properties of the hot rolled Mg-Gd-Y-Zn-Zr alloy containing LPSO phase

2018 ◽  
Vol 731 ◽  
pp. 479-486 ◽  
Author(s):  
Jianbo Shao ◽  
Zhiyong Chen ◽  
Tao Chen ◽  
Renke Wang ◽  
Yaoling Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Deformation Mechanism ◽  
Texture Evolution ◽  
Lpso Phase ◽  
Hot Rolled ◽  
Zr Alloy

scholarly journals The Effects of Reduction and Thermal Treatment on the Recrystallization and Crystallographic Texture Evolution of 5182 Aluminum Alloy

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1380
Author(s):  
Sofia Papadopoulou ◽  
Athina Kontopoulou ◽  
Evangelos Gavalas ◽  
Spyros Papaefthymiou
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Thermal Treatment ◽  
Rolled Product ◽  
Crystallographic Texture ◽  
Texture Evolution ◽  
Fiber Texture ◽  
Electron Back Scatter Diffraction ◽  
Cold Rolled ◽  
Hot Rolled

During forming, thickness reduction and thermal treatment affect the recrystallization and evolution of the crystallographic texture of metallic materials. The present study focuses on the consequences of rolling reduction of a widespread aluminum alloy with numerous automotive, marine and general-purpose applications, namely Al 5182. Emphasis is laid on the crystallographic texture and mechanical properties on both hot and cold-rolled semi-final products. In particular, a 2.8 mm-thick hot-rolled product was examined in the as-received condition, while two cold-rolled sheets, one 1.33 mm and the other 0.214 mm thick, both originating from the 2.8 mm material, were examined in both as-received and annealed (350 °C for 1 h) conditions. Electron back-scatter diffraction indicated the presence of a large percentage of random texture as well as a weak recrystallization texture for the hot-rolled product, whereas in the case of cold rolling the evolution of β-fiber texture was noted. In addition, tensile tests showed that both the anisotropy as well as the mechanical properties of the cold-rolled properties improved after annealing, being comparable to hot-rolled ones.

Microstructure and mechanical properties of the hot-rolled Mg–Y–Nd–Zr alloy

2013 ◽  
Vol 28 (10) ◽  
pp. 1386-1393 ◽  
Author(s):  
Xiao Wang ◽  
Chuming Liu ◽  
Lu Xu ◽  
Hongchao Xiao ◽  
Liang Zheng
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Image Position ◽  
Hot Rolled ◽  
Zr Alloy

Abstract

scholarly journals Friction Stir Welding of an Al-Mg-Sc-Zr Alloy with Ultra-Fined Grained Structure

2014 ◽  
Vol 794-796 ◽  
pp. 365-370
Author(s):  
Sergey Malopheyev ◽  
Sergey Mironov ◽  
Vladislav Kulitskiy ◽  
Rustam Kaibyshev
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Weld Zone ◽  
Friction Stir ◽  
Angular Pressing ◽  
Joint Efficiency ◽  
Cold Rolled ◽  
Rolled Condition ◽  
Hot Rolled ◽  
Zr Alloy

Effect of friction stir welding (FSW) on mechanical properties and microstructure of Al-5.4Mg-0.2Sc-0.1Zr sheets with ultra-fined grained (UFG) structure was studied. The UFG-sheets were produced by equal-channel angular pressing (ECAP) followed either by cold or hot rolling. FSW was found to be very effective for retaining the UFG microstructure as well as constituent coherent nano-scale dispersoids in the welded material. Despite the preservation effect, however, the essential material softening was observed in the weld zone. This was attributed to the recrystallization occurring during FSW. The joint efficiency for yield strength of the obtained friction stir welds was found to be 81% in the hot rolled condition and only 55% in the cold rolled state. The relatively low joint efficiency was associated with the recrystallization softening as well as with the formation of a specific “kissing bond” defect in the stir zone. The joint efficiency is believed may be improved by adjusting of welding conditions and/or tool design.

Effect of Rolling on Mechanical Properties and Fatigue Behavior of an Al-Mg-Sc-Zr Alloy

2014 ◽  
Vol 794-796 ◽  
pp. 331-336 ◽  
Author(s):  
Daria Zhemchuzhnikova ◽  
Rustam Kaibyshev
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Fatigue Behavior ◽  
Cyclic Fatigue ◽  
Static Mechanical ◽  
Cold Rolled ◽  
Hot And Cold Rolling ◽  
Hot Rolled ◽  
Static Mechanical Properties ◽  
Zr Alloy

An aluminum alloy with a chemical composition of Al–6%Mg–0.35%Mn–0.2%Sc–0.08%Zr–0.07%Cr (in wt.) was rolled up to different reductions of 75, 88 and 95% at 360oC and at ambient temperature. The static mechanical properties and the high-cyclic fatigue (HCF) life were examined. It was shown that the hot rolling results in increased yield stress (YS) and ultimate tensile strength (UTS). However, ductility and fatigue limit of the hot rolled alloy and initial as-cast ingot are nearly the same. The combination of hot and cold rolling leads to significant improvement of tensile strength and fatigue resistance, while ductility tends to reduce with increasing the rolling reduction. The cold rolled alloy exhibits the endurance limit under fatigue conditions, while the alloy in the both as-cast and hot rolled conditions exhibits only fatigue strength. The effect of the deformation structure on the mechanical properties is discussed.

scholarly journals Texture evolution in Nd:YAG-laser welds of AZ31 magnesium alloy hot rolled sheets and its influence on mechanical properties

2011 ◽  
Vol 528 (4-5) ◽  
pp. 2049-2055 ◽  
Author(s):  
Loreleï Commin ◽  
Myriam Dumont ◽  
René Rotinat ◽  
Fabrice Pierron ◽  
Jean-Eric Masse ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Nd:Yag Laser ◽  
Texture Evolution ◽  
Az31 Magnesium Alloy ◽  
Laser Welds ◽  
Hot Rolled

scholarly journals Relationship among Initial Texture, Deformation Mechanism, Mechanical Properties, and Texture Evolution during Uniaxial Compression of AZ31 Magnesium Alloy

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 738 ◽  
Author(s):  
Hui Su ◽  
Zhibing Chu ◽  
Chun Xue ◽  
Yugui Li ◽  
Lifeng Ma
Keyword(s):  
Mechanical Properties ◽  
Deformation Mechanism ◽  
Texture Evolution ◽  
Extrusion Direction ◽  
Mechanical Anisotropy ◽  
Mg Alloy ◽  
Az31 Mg Alloy ◽  
Close Relationship ◽  
Initial Texture ◽  
The Difference

Cuboid samples with significant initial texture differences were cut from extruded AZ31 Mg alloy samples, whose long axis and bar extrusion direction ED were 0° (sample E0), 45° (sample E45), and 90° (sample E90). The relationship among the initial texture, deformation mechanism, mechanical properties, and texture evolution of the AZ31 Mg alloy was investigated systematically using a compression test, microstructure characterization, and the Viscoplastic Self-Consistent (VPSC) model. Results revealed a close relationship among them. By influencing the activation of the deformation mechanism, the deformation under different initial textures resulted in obvious mechanical anisotropy. Compared with E0 and E90, the initial texture of E45 was more conducive to the improvement of reforming ability after pre-compression. Meanwhile, the initial texture significantly affected the microstructure characteristics of the material, especially the number and morphology of the {10–12} tensile twins. Texture results showed that the priority of deformation mechanism depended on the initial texture and led to the difference in texture evolution.

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