太原理工大学学报2018，Vol.49Issue(1)：26-33,8.DOI:10.16355/j.cnki.issn1007-9432tyut.2018.01.005
强脉冲电流下变形镁合金的微观组织及其力学性能
Effect of Strong Pulse Current on Microstructure and Mechanical Properties of Deformed Magnesium Alloy
摘要
Abstract
In this paper,effect of strong pulse current on static recrystallization,microstructure and mechanical properties of rolled AZ31 alloy was studied by the orthogonal experiment method.The results show that rolling deformation and pulse width have a significant influence on recrystallization fraction,with the increase of rolling deformation and pulse width,recrystallization fraction increases significantly.Rolling deformation has obvious effect on reducing the average grain size,while pulse width and pulse processing time promote the homogenization of grain size.Rolling deformation and pulse width are the main factors influencing the thermal effect.Experiments show that recrystallization fraction is 97.9％ and the average grain size is 6.74 μm under the condition of optimal combination.Tensile tests show that under the conditions of 30％ rolling deformation,10 min pulse processing time and 70 μs pulse width,the tensile strength and elongation of the material were 341 MPa and 11.6％,respectively.关键词
AZ31镁合金/强脉冲电流/正交实验/力学性能Key words
AZ31 alloy/strong pulse current/orthogonal experiment/mechanical property分类
矿业与冶金引用本文复制引用
郭凤海,樊建锋,张华,张强,董洪标,许并社..强脉冲电流下变形镁合金的微观组织及其力学性能[J].太原理工大学学报,2018,49(1):26-33,8.基金项目
山西省自然科学基金资助项目(2015011033) （2015011033）
山西省自然科学青年基金资助项目(2015021073) （2015021073）
山西省高等学校科技刨新资助项目(2014118) （2014118）
