Abstract
Electron Backscatter Diffraction (EBSD) is employed to characterize the microstructure and texture established during the process of warm rolled AZ31 magnesium alloy sheets. The grain size was refined from 17.4 μm to 3.8 μm after 4 pass rolling. Texture of as-rolled sheets was expressed by (0002) basal texture, and the texture intensity was increased with the rolling pass increasing. The mechanical properties of as-rolled sheets were greatly improved by warm rolling.
Highlights
Magnesium alloys have attracted significant interest due to their excellent specific properties and low weight which make these materials potentially suitable for applications in automotive, aerospace and electronic industries [1]
The average grain size was reduced to 3.5 m after 2 passes of rolling, and the microstructure was mainly consisted of recrystallization grains
The further rolling passes caused a slight increase of the average grain size to 3.8 m, homogenous and equiaxed grains were obtained
Summary
Magnesium alloys have attracted significant interest due to their excellent specific properties and low weight which make these materials potentially suitable for applications in automotive, aerospace and electronic industries [1]. It is well known that grain refinement has a great influence on the improvement of mechanical properties of AZ31 magnesium alloys [2,3,4]. Basal texture is another important factor which can greatly influence the mechanical properties of magnesium alloys. Agnew et al [6, 7] indicated that the ductility of AZ31 and AZ80 magnesium alloys was greatly enhanced due to texture modification during equal channel angular extrusion (ECAE). The relationship between microstructure, texture and mechanical properties of AZ31 magnesium alloys by multi-pass pass warm rolling were studied
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