【作者】 李强； 张超逸； 于宝义； 花福安； 李建平； 谢水生；

【Author】 LI Qiang~1,ZHANG Chao-yi~1,YU Bao-yi~1,HUA Fu-an~2, LI Jian-ping~2,XIE Shui-sheng~3 1 School of Material Science and Engineering,Shenyang University of Technology, Shenyang,P.R.China,110870 2 State Key Lab of Rolling and Automation,Northeastern University,Shenyang,P.R.China,110004 3 State Key Lab of Nonferrous Metals Manufacturing & Fabricating, Beijing General Research Institute for Nonferrous Metal,Beijing,100088

【机构】 沈阳工业大学材料科学与工程学院； 东北大学轧制与自动化国家重点实验室； 北京有色金属研究总院有色金属加工制备国家重点实验室；

【摘要】 研究了AZ31镁合金管材冷轧后的组织变化,以及退火温度和保温时间对轧制后镁合金管材组织的影响。当轧制退火温度300℃,保温90min,然后空冷的中间退火工艺可以实现晶粒的细化,平均晶粒尺寸为9.8um,有利于进一步的轧制变形。通过对静态再结晶动力学的分析,可以得出用静态再结晶体积分数和退火时间的关系。更多还原

【Abstract】 The impact of the annealing temperature and holding time on the microstructure of the cold rolling AZ31 magnesium alloy pipe were studied.The experimental results show that when the annealing temperature is 300 centigrade and air cooling after holding time is about 90 minutes,the finer grain size can be got that the averaged grain size is about 9.8μm, which is benefited to improve its rolling deformation ability.The relationship between the recrystallization fraction and annealing time can be got by analysising kinetic of static recrystallization of AZ31.更多还原