Effect of Heat Treatment on Microstructure, Tensile Properties and Damping Capacity of Mg-Zr Wrought Alloy

Joong Hwan Jun; Geon Ha Lee; Jeong Min Kim; Ki Tae Kim; Woon Jae Jung

doi:10.4028/www.scientific.net/MSF.510-511.210

Paper Titles

Improvement of the Core Loss of SiFe by Optimizing the Operation Conditions of the Laser Scribing
p.194

Nanocrystalline Structure of Organic Photoconducting Materials Derived by Microwave Recrystallization Method
p.198

Microstructures and Wear Properties of Al Matrix Composites Fabricated by Two Different Processes
p.202

Dispersion Stability of Ni Nanoparticles in Ethanol with Poly (1-Vinyl-2-Pyrrolidone)
p.206

Effect of Heat Treatment on Microstructure, Tensile Properties and Damping Capacity of Mg-Zr Wrought Alloy
p.210

Microstructures and Mechanical Properties of Mg-Zn-RE-Ca Casting Alloys
p.214

Characteristics of Thin Film of Nano-Hybrid Synthesized from Acrylic Resin and Colloidal Silca-Silane Sol
p.218

Properties of Coating Films Synthesized from Nano Colloidal Silica and Alkoxy Silanes
p.222

Effect of Processing Parameters on the Fabrication of Al₂O_3p/Al Composites by In-Situ Reaction Process of Molten Al
p.226

HomeMaterials Science ForumMaterials Science Forum Vols. 510-511Effect of Heat Treatment on Microstructure,...

Effect of Heat Treatment on Microstructure, Tensile Properties and Damping Capacity of Mg-Zr Wrought Alloy

Abstract:

Microstructures, tensile properties, and damping capacity of the hot-rolled and annealed K1A (Mg-0.7%Zr) wrought alloy were investigated in comparison with those of a commercial AZ31 (Mg-3%Al-1%Zn-0.2%Mn) wrought alloy. The K1A alloy in hot-rolled state shows 116 and 183MPa of tensile yield strength (σYS) and ultimate tensile strength (σUTS), respectively, which are significantly higher than those (40 and 130MPa) of the K1A casting alloy. The hot-rolled K1A alloy exhibits 10.4% of specific damping index (SDI) and subsequent annealing treatment remarkably enhances its SDI up to 19.7% without sacrificing the tensile strength. Although the annealed AZ31 alloy has 3.9% of low SDI, its tensile properties are still higher than those of the K1A alloy.