摘要
利用超塑性预处理细化晶粒原理 ,在低碳钢中加入不同体积分数的第二相粒子ZrC和ZrO2 ,研究了ZrC和ZrO2 粒子体积分数及轧后不同冷却方式对低碳钢组织和力学性能的影响。研究结果表明 ,轧制变形量为 84 %时 ,加入 0 .8%的ZrC粒子 ,采用轧后水冷方式可获得超细组织 ,晶粒尺寸可达到 9.8μm ;加入 0 .2 %的ZrO2 粒子时 ,晶粒尺寸可达 7.8μm。
Based on the super plastic pre treatment principle, the second phase ZrC and ZrO\-2 particles with different volume fractions were added into the low carbon commercial steel. The effects of volume fractions of ZrC and ZrO\-2 particles and different cooling methods for the rolled steel on the microstructure and mechanical properties of the materials were investigated. The results show that under the conditions of water quenching and rolling strain of 84 percent for the steel, a super refined structure with the grain diameter of 9.8 μm can be obtained while the ZrC particle with 0.8 percent volume fraction was added into the steel. When the volume fraction of ZrO\-2 particle is 0.2 percent, the grain diameter is 7.8 μm. The grain size of the rolled steel treated with the water quenching method is smaller than that with the normalizing process.
出处
《石油大学学报（自然科学版）》
EI
CSCD
北大核心
2002年第6期67-69,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
国家自然科学基金资助项目 (5 99710 3 1)
关键词
超塑性预处理
原理
细化
低碳钢
晶粒
研究
粒子结构
力学性能
super plastic pre treatment
low carbon commercial steels
grain refining
particle structure
mechanical property
