Effect of Rolling Temperature on the Evolution of Microstructure, Texture, and Mechanical Properties of AZ31 Mg Alloy

No Jin Park; Sun Hea Hwang

doi:10.4028/www.scientific.net/MSF.702-703.76

Paper Titles

Characteristics of Microstructure and Texture in the Stir Zone of Friction Stir Welded Al-12.7Si-0.7Mg Alloy
p.56

Effects of a High Magnetic Field on Austenite Decomposition in High Purity Fe-1.1C (wt.%) Alloy
p.60

Directional Anisotropy in the Mechanical Behavior of Friction Stir Processed and Aged AZ91 Alloy
p.64

Texture Control of Aluminum and Magnesium Alloys by the Symmetric/Asymmetric Combination Rolling Process
p.68

Effect of Rolling Temperature on the Evolution of Microstructure, Texture, and Mechanical Properties of AZ31 Mg Alloy
p.76

Application of Visco-Plastic Self Consistent Approach to Model Deformation Characteristics of Magnesium with Different Textures
p.80

Microstructure and Texture Evolution during Hot Rolling of Mg-9Li-7Al-1Sn Alloy for Aerospace Application
p.85

Development of Microstructure and Texture in Al5052 Alloy Processed at Room and Cryogenic Temperatures in an ECAP Die
p.89

Microstructure Evolution and Mechanical Behaviour of Severe Plastically Deformed Cu
p.93

HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Effect of Rolling Temperature on the Evolution of...

Effect of Rolling Temperature on the Evolution of Microstructure, Texture, and Mechanical Properties of AZ31 Mg Alloy

Abstract:

Magnesium alloys have attracted a great deal of attention and have been extensively studied, but there is still a major obstacle to their practical application, namely, their poor formability at room temperature, which basically originates from their insufficient number of slip systems. The development of a microstructure and/or texture that is more conducive to formability is one promising solution that could improve their formability. In the present work, the microstructures, textures, and tensile properties of AZ31 Mg alloys are studied following extrusion and full annealing and rolling at 100 and 300°C. After full annealing, a strong ∥ED fiber texture and a weak + ∥ED fiber texture (c-axes in the radial direction) were developed. After 40% rolling at 100°C, many deformed twins were observed and a relatively weak texture was developed. The basal poles were split and rotated about 20° to the rolling direction (RD). During 60% rolling at 300°C, dynamic recrystallization (DRX) took place and a strong ∥ND fiber texture was developed, and this had an influence on the alloys’ poor formability at room temperature.