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| Texture investigation on the deformation mechanisms in magnesium alloy AZ31 deformed at high temperatures |
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| 100083北京科技大学材料科学与工程学院 |
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Cite this article:
. Texture investigation on the deformation mechanisms in magnesium alloy AZ31 deformed at high temperatures. Chin J Mater Res, 2004, 18(1): 52-52.
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Abstract Deformation mechanisms of a magnesium alloys AZ31 deformed at high temperature in the presence of dynamic recrystallization and super-plasticity are investigated by texture analysis using X-ray diffraction and electron back scattering diffraction techniques. Results indicate that deformation by plastic slip inside grains still plays an important role due to the facts that preferred orientations are found in recrystallized grains and that some strongly elongated deformed grains are present in samples. Difference in texture can be detected in the new grains of samples with different initial textures and different slip mechanisms are ascribed to the elongated deformed grains in different samples. The improved plasticity due to increasing temperature in deformed grains with same orientation is discussed. Orientation mapping reveals a misorientation distribution of large amount of small angle grain boundaries and an orientation relationship of 30°<0001> among basal oriented grains which is due to the 6-fold crystallographic symmetry of hexagonal close-packed structure of magnesium.
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Received: 27 February 2003
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