摘要
研究了Si对冷拔形变低碳Si-Mn双相钢回复及再结晶过程的影响。试验结果表明。(1)试验钢回复及再结晶过程首先在原双相组织中的铁索体区内发生;再结晶晶粒的形成方式既可以是亚晶合并,也可以是亚晶界向外弓出;原铁素体区再结晶后的α晶粒,大于原双相组织中马氏体区再结晶的α-晶粒。(2)钢中硅含量的增多,显著推迟形变Si-Mn双相钢的回复及再结晶过程。(3)分别计算了试验钢回复后期和再结晶前期的激活能。
The influence of silicon on the proceedings of the recovery and recrystallization of the cold-drawn Si-Mn dual-phase steels was researched by means of SEM, TEM and HV-hardness. Experimental results show. (1) The proceedings of the recovery and recrystallization of experimental steels appeal firstly in the original ferrite phase of the dual-phase structure, and it is discovered that the formation of a recrystallized grain through the growth of subgrain boundary or subgrain coalescence, and in the ferrite field the recrystallized α-grain size is larger than the recrystallized α-grain size in the marlensi te field. (2) The proceedings of the recovery and recrystallization were delayed obviously increasing silicon content of steel. (3) The recovery activation energy and recrystallization activation energy were calculated respectively.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1992年第4期463-469,共7页
Journal of University of Science and Technology Beijing
关键词
回复
再结晶
双相钢
硅
recovery, reerystallization, dual-phase steel, silicon.
