摘要
在不同应变速率和应变温度下,对Mg-3Al、Mg-6Al和Mg-9Al合金进行了机械变形处理,研究了变形参数对不同Al含量的Mg-Al合金组织与变形行为的影响。结果表明,Mg-3Al、Mg-6Al和Mg-9Al合金在变形温度为450℃、拉伸应变速率为10-3/s时都有动态再结晶组织,但是Al含量对Mg-Al合金的动态再结晶的影响较小。当应变速率为10-2、10-3/s时,Mg-3Al、Mg-6Al和Mg-9Al合金的伸长率随扩散系数补偿应变速率的增加而降低,相比较而言,应变速率为10-3/s时合金的伸长率更大,合金具有更好的塑性。
Under different strain rates and strain temperatures, the mechanical deformation treatment was carded out on Mg-3Al, Mg-6Al and Mg-9Al alloy. The effects of deformation parameters on the microstructure and deformation behavior of Mg-Al alloy with different contents of Al were studied. The results show that Mg-3Al, Mg-6Al and Mg-9Al alloy have dynamic recrystallizafion microstructure under the deformation temperature of 450℃ and strain rate of 10^-3/s, but the influence of AI content on dynamic recrystaUization of Mg-Al alloy is little. When the strain rate is 10^-2/s and 10^-3/s, the elongation of Mg-3Al, Mg-6Al and Mg-9Al alloy decrease with the increase of diffusion coefficient compensated strain rate, in comparison, when the strain rate is 10^-3/s, the elongation of the alloy is bigger, which shows that the alloy has better plasticity.
作者
蒋放
廖文敏
JIANG Fang LIAO Wenmin(North China Institute of Aerospace Engineering, Mechanical and Electrical Engineering,Langfang 065000 ,Chin)
出处
《热加工工艺》
CSCD
北大核心
2017年第2期60-63,共4页
Hot Working Technology
基金
河北省重点研发计划自筹项目(15211821)
