材料工程Issue(5)：81-87,92,8.
翼缘板钢非对称冷轧及再结晶退火实验研究
Research of Asymmetrical Cold Rolling and Recrystallization Annealing Experiment of Flange Plate Steel
摘要
Abstract
Asymmetrical cold rolling technology was adopted for flange plate steel. Microstructure of rolled pieces was observed under the accumulated reduction of 78%. The results show that as the ratio of working rollers' speed is greater, the ratio of length to width of gain is higher. The idea is put forward that the ratio of length to width of gain can reflect the additional shear deformation size of rolled pieces under the condition of asymmetrical rolling. The tensile tests and annealing tests at different annealing temperatures were made for cold rolled pieces and the microstructure was observed by the transmission electron microscopy. The results show that as the ratio of working rollers' speed is greater, proof strength increases, average grain diameter decreases after cold rolled pieces annealed. With increase of the ratio of working rollers' speed, high density dislocations and the small size subgrains are observed. It indicates that asymmetrical rolling can present more additional shear strain than that of symmetrical rolling, more dislocations and subgrains can be generated in the course of asymmetrical rolling, and the strength of the flange plate steel is enhanced and the straining accumulation energy increases under the condition of asymmetrical rolling. It proves that annealing temperature of recrystal-lization is reduced.关键词
异步轧制/附加剪切变形/退火Key words
asymmetrical rolling/ additional shear strain/ annealing分类
矿业与冶金引用本文复制引用
唐荻,戴辉,孙蓟泉..翼缘板钢非对称冷轧及再结晶退火实验研究[J].材料工程,2011,(5):81-87,92,8.基金项目
"十一五"国家科技支撑计划资助项目(2006BAE03A06) （2006BAE03A06）
