Study of deformation texture in an AZ31 magnesium alloy rolled at wide range of rolling speed and reductions. Issue 1 (April 2015)

• Record Type: Journal Article
• Authors: Sanjari, M; Tamimi, S; Su, J; Kabir, A S; Hara, K; Utsunomiya, H; Petrov, R; Yue, S; Kestens, L
• Is Part Of: IOP conference series. Volume 82:Issue 1(2015)
• Publication Date: 2015-04
• Subjects: Magnesium alloys -- Texture evolution -- High speed rolling -- VPSC; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/82/1/012030
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: The plasticity of Mg is restricted at low temperatures because: (a) only a small number of deformation mechanisms can be activated, and (b) a preferred crystallographic orientation (texture) develops in wrought alloys, especially in flat-rolled sheets. This causes problems in thin sheet processing as well as component manufacturing from the sheet. In this study, different rolling speeds from 15 to 1000 m/min were employed to warm-roll AZ31B magnesium alloy to different reductions. The results show that AZ31B sheets rolled at 15 m/min and 100 °C has fractured for reductions of more than 30% per pass. However, by increasing the rolling speed to 1000 m/min the rollability was improved significantly and the material can be rolled to reductions of more than 70% per pass. The results show that with increasing strain rate at 100°C, the splitting of basal poles was observed, indicating the activation of more contraction twins and secondary twins.