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| Deforming Texture and Deformation Mechanism of Coordination of AZ31 Magnesium Alloy Sheets |
| LIU Huaqiang, TANG Di, CAI Qingwu, MENG Qiang |
| National Engineering Research Center of Advance Rolling Technology, University of Science and Technology Beijing, Beijing 100083 |
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Cite this article:
LIU Huaqiang TANG Di CAI Qingwu MENG Qiang. Deforming Texture and Deformation Mechanism of Coordination of AZ31 Magnesium Alloy Sheets. Chin J Mater Res, 2012, 26(3): 231-239.
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Abstract The effects of deforming texture and deformation mechanisms of slip and twinning on the comprehensive performance of AZ31 magnesium alloy sheets were investigated by using uniaxial tensile test with controlled strain rate. The results show that the Schmid factor of {0002} basal plane is low, the slip of basal plane is difficult to start, and the yield strength is bigger along the tensile direction of extrusion. The grains of prismatic orientation lie in the best position for {0002} plane slipping, and the prismatic slip of the basal plane orientation also is in the best position. Therefore, the yield strength is low, and the elongation is bigger along the tensile direction of 45o. The twins have an important effect on the mechanical properties of the sheets, and the elongation is lower because the large numbers of twins induce crack along the transverse tensile direction. The large numbers of tensile twins are the inducement of producing the double peak texture of {0002} palne along the tensile direction of 45o and transverse direction.
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Received: 26 December 2011
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| Fund: Supported by National "Twelfth Five-Year" Plan for Science & Technology Support of Magnesium Alloy No.2011BAE22B00. |
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