Evolution of the Plastic Deformation Mechanisms in a Compressed Mg-10Gd-2Y-0.5Zr Alloy

Qing Yu Hou; Jing Tao Wang; Zhen Yi Huang

doi:10.4028/www.scientific.net/AMR.510.628

Paper Titles

Influence of Sensitizer Concentration on the Upconversion Luminescence of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles
p.609

Luminescence Properties of Er³⁺-Doped Ga₂O₃-GeO₂-Bi₂O₃-R₂O (R=Na and K) for 1.53 μm Fiber Amplifier
p.614

Fine Cemented Carbide Particles Prepared with Activated Tungsten Oxide
p.619

Synthesis and Magnetic Studies of Core-Shell FePt@Fe₃O₄ Nanowires and Nanoparticles
p.623

Evolution of the Plastic Deformation Mechanisms in a Compressed Mg-10Gd-2Y-0.5Zr Alloy
p.628

Study of Preparation and Properties of Fire-Retardant Melamine Formaldehyde Resin Foam
p.634

Polymer Micro Hot Embossing with Bulk Metallic Glass Mold Insert
p.639

Effects of Doping Si on the Preparation of Ternary Titanium Aluminum Carbide Powder by Pressureless Sintering
p.645

Microstructural and Mechanical Properties of Autoclaved Saline Soil Brick: Part I: Microstructure Features
p.650

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 510Evolution of the Plastic Deformation Mechanisms in...

Evolution of the Plastic Deformation Mechanisms in a Compressed Mg-10Gd-2Y-0.5Zr Alloy

Abstract:

This paper investigates the evolution of the deformation mechanisms in a homogenized Mg-10Gd-2Y-0.5Zr alloy ingot compressed at 300-500 °C and 0.1-20 s^-1. It can be found that the basal slip and mechanical twinning are the major deformation mechanisms in the alloy compressed at 300 and 0.1-20 s^-1. Increasing the testing temperature to 350 °C, basal slip, non-basal slip and mechanical twinning control the plastic deformation of the alloy compressed at 0.1-20 s^-1. When the testing temperatures increase further to 400-500 °C, the mechanical twinning is replaced gradually by the local shear bands which are formed by dynamic recrystallization (DRX) grains (referred as transformation bands). The transformation bands have the trend to form the typical DRX microstructure with increasing the temperatures (might be caused by increasing testing temperatures or strain rates). Besides, the transformation bands can also be found in the sample compressed at 350 °C and 20 s^-1 when the temperature in the deformation alloy is high enough to activate non-basal slip and form DRX grains at local zone.