It was investigated that microstructure

texture evolution during rolling process

and influences of total reduction and asynchronous ratio on microstructure

texture and mechanical properties of AZ31 magnesium alloy sheet which processed by normal rolling（NR） and asynchronous rolling（AR） technology.The results show that

when the total reduction ratio is in a range of 3%

1

5%

the grain size and uniformity in both NR sheets and AR sheets exhibit similar change trend.During the initial stage of rolling

with the increase of reduction

the number of twins is raised

which results in the grain orientation deflection in NR and AR rolled sheets.Namely

axis C of grains tended towards the normal direction（ND）

decreasing the silk texture in the extruded sheet.When the total reduction ratio reaches 24%

twins are greatly decreased and or even disappeared.When the total reduction ratio is in a range 3%

2

4%

the influence of NR rolling on the mechanical properties of the AZ31 magnesium alloy sheets can be neglected.While total reduction ratio reaches about 24%

asynchronous rolled sheets present acceptable plastic performance

and the tensile strength reaches 309 MPa

and the peak strain is 0.163.