Developments of Magnesium Alloys by Melt Stirring Method

Shinji Ando; Le Ping Bu; Shunsuke Tanaka; Hiromoto Kitahara; Hideki Tonda

doi:10.4028/www.scientific.net/MSF.561-565.271

Paper Titles

Effects of Homogenization Treatment on Mechanical Properties of Hot-Rolled AZ31 Magnesium Alloy
p.255

Fatigue in Ti-6Al-4V at Very High Cycles
p.259

3D Image-Based Modeling of Ductile Fracture in an Aluminum Alloy Using Synchrotron X-Ray CT Images
p.263

Fatigue Fracture Behavior of Mg-Zn-Y Alloys
p.267

Developments of Magnesium Alloys by Melt Stirring Method
p.271

HREM and HAADF Studies of Precipitates in the Mg-Y-Nd Alloy System
p.275

Microstructural Characterization and Temperature Analysis in Friction Stir Welding of A383/5052 Dissimilar Aluminum Alloys
p.279

First-Principles Calculation of Interaction Energies between Solutes and/or Vacancies for Predicting Atomistic Behaviors of Microalloying Elements in Aluminum Alloys
p.283

Influences of Rolling Conditions on Texture and Mechanical Properties of AZ31 Magnesium Alloy Processed by Differential Speed Rolling
p.287

HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Developments of Magnesium Alloys by Melt Stirring...

Developments of Magnesium Alloys by Melt Stirring Method

Abstract:

For development of high strength magnesium alloys, a melt stirring method was employed to Mg-Al and Mg-RE (rare earth metal) alloys. As reinforcement particle, B2O3 powder was added into melts and stirred at 953K in 10 or 20 minutes with argon atmosphere. The grain sizes of both alloys were decreased by 3wt% B2O3 addition. These results show that B2O3 have grain refinement effects to magnesium alloys. Micro Vickers hardness of Mg-Al alloy was increased by 3wt% B2O3 addition. On the other hand, the hardness of Mg-RE alloy was decreased by B2O3. Though addition of B2O3 into Mg-Al and Mg-RE systems make grain size to fine, the hardness of Mg-RE alloys decreased. The tensile properties of Mg-RE alloys with B2O3 were extremely improved by extrusion process.