应变诱发铁素体相变对低碳钢晶粒细化的影响  

Effects of Strain -Induced Phase Transformation of Ferrite on Grain Refinement for Low Carbon Steel

作　　者：李维娟[1] 杜林秀[1] 张红梅[1] 刘相华[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110006

出　　处：《钢铁研究学报》2000年第5期36-39,共4页Journal of Iron and Steel Research

基　　金：国家 973新一代钢铁材料重大基础研究项目 !(G19980 6 15 0 9)

摘　　要：研究了在奥氏体低温区变形时显微组织的变化 ,并测试了其变形抗力。结果表明 :在 Ar3 以上温度变形会产生应变诱发铁素体相变 ,使变形抗力下降。通过降低变形温度 。The evolution of microstructures of low carbon steel during the deformation of austenite at lower temperature was investigated, and the deformation resistance was measured. The result indicates that the strain induced ferrite exists in microstructure when the deformation temperature is above A r3 , and the resistance to deformation reduces as the deformation temperature decreases in certain temperature range. The ferrite grains can be refined through lowering the deformation temperature.

关 键 词：应变诱发铁素体相奕 低碳钢 变形抗力 晶粒细化 

分 类 号：TG142[一般工业技术—材料科学与工程]