Microstructure of AZ31 magnesium alloy produced by continuous variable cross-section direct extrusion (CVCDE)
Microstructure of AZ31 magnesium alloy produced by continuous variable cross-section direct extrusion (CVCDE)
复制标题
连续变截面直接挤压(CVCDE)AZ31镁合金的显微组织
DOI:
10.1016/j.matlet.2014.07.116
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发表时间:
2014-11
影响因子:
3
通讯作者:
N. Bian
中科院分区:
文献类型:
--
作者:
F. Li;X. Zeng;N. Bian
In order to study the effect of a new Severe Plastic Deformation (SPD) technique-continuous variable cross-section direct extrusion (CVCDE) on improving the mechanical properties of magnesium alloy, electronic backscattered diffraction (EBSD) was employed to investigate the microstructure and texture of CVCDEed AZ31 magnesium alloy. Compared with conventional extrusion (CE), CVCDE can increase the accumulated strain without changing the total extrusion ratio during extrusion process. Under the effect of CVCDE, coarse grains can be further sheared up to refined grains and the number of dynamic recrystallization grains increases. At the same time, this method can significantly weaken basal plane texture and improve tensile strength and elongation of CVCDEed product, which provides an effective way to produce excellent performance magnesium alloys.
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DOI:
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