Effect of Electric Current Parameters on the Microstructural Evolution in a AZ31B Magnesium Alloy
Abstract: The effect of electric current parameters, including the pulsed voltage intensity and the electric pulse repeating times on the microstructural evolution of AZ31B magnesium alloy was investigated by optical microscope method. The results showed that the grains become coarser with increasing either the pulsed voltage intensity or the repeating times. In addition, the application of electric current was beneficial to the formation of tensile twins, which could be ascribed to the thermal compressive stress formed due to the nonsynchronous between the temperature increment and the thermal expansion inter the grains during current passing.
文章引用: 吴稀勇 , 吴 楠 , 王新丽 , 戴文斌 (2016) 脉冲电流处理工艺参数对AZ31B镁合金的微观形貌的影响。 冶金工程， 3， 1-6. doi: 10.12677/MEng.2016.31001
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