Study on Mechanical Behavior for Warm Extrusion of AZ61 Magnesium Alloy

Xing Zhang; Zhi Min Zhang; Bao Cheng Li

doi:10.4028/www.scientific.net/MSF.575-578.222

Paper Titles

Investigation to the Damage Tolerance of Composite Cylinder for Vehicles by Numerical Simulation
p.198

Research on Closed Die Forging Process of Car Steering Knuckle
p.204

Study on Effect of Extrusion Velocity on Composites Liquid-Solid Extrusion Process Using 3D Thermo-Mechanical Simulation
p.210

Torque Strength and Influencing Factors Analysis for Assembled Camshaft by Knurling Joining
p.216

Study on Mechanical Behavior for Warm Extrusion of AZ61 Magnesium Alloy
p.222

A Research on Steel Synchronizer Gear Ring's Precision Forging
p.226

Researches on Rules of the Longitudinal Residual Stress Distribution in Straightening Deformation Zone of Heavy Rail with Multi-Rollers
p.231

The Application on Initial Design of Auto Panel Based on One-Step FEM
p.237

Research on Behavior of Slab Surface Defects in Forward Slip Zone during V-H Rolling Process
p.243

HomeMaterials Science ForumMaterials Science Forum Vols. 575-578Study on Mechanical Behavior for Warm Extrusion of...

Study on Mechanical Behavior for Warm Extrusion of AZ61 Magnesium Alloy

Abstract:

Thermal compression tests of AZ61 magnesium alloy was performed at deformation temperature 150-400°C and strain rates ranged from 0.01s-1 to 10s-1, and the microstructure were observed for deformation specimens. The result shows that dynamic recrystallization (DRX) was happened under the center warm deformation condition for AZ61 alloy. The values of stress peak decrease when the deformation temperature increase, the grain size grows up at the same time. On the other hand, the critical strain increase and the grain size get smaller with the strain ratio increasing. Therefore temperature and strain ratio can make a great effect on the microstructure and mechanical properties of AZ61 alloy, but temperature is a more important factor.