摘要
在常规拔丝工艺上利用自行研制的电子拉丝机，进行电致塑性加工镁合金丝材的试验，并对电致塑性拉拔后镁合金丝材的微观组织进行系统分析。结果表明，在镁合金的拔制过程中引入适当的高能脉冲电流后，拔制应力出现较大幅度的降低。降幅可达15％～25％，材料的塑性也得到了显著提高，与常规拔丝工艺相比，具有可取消或减少退火次数，提高生产效率．节省能源，降低生产成本的优点。
The experiments on electroplastic treating of Mg-alloy wire are conducted by traditional cold-drawing technology with self-designed electro-drawing machine, and the microstructure of the treated Mg-alloy wire is systemically analyzed. The results show that the drawing deformation stress of the Mg-alloy wire is remarkably decreased by a factor of 15 % - 25 % with use of high energy pulse electric current, and the plasticity of the materials is obviously improved. Comparing to the traditional cold drawing, the electro-drawing technology has the advantages of cancelling anneal treatment or decreasing the times, improving working efficiency, reducing energy consumption and production cost.
出处
《有色金属》
CSCD
北大核心
2007年第2期10-13,共4页
Nonferrous Metals
基金
国家自然科学基金资助项目(50571048)
关键词
金属材料
镁合金丝材
电致塑性
拔制
微观结构
metal material
magnesium wire
electroplastic
wire-drawing
microstructure
