变形功与冷却速度对金属组织细化的影响  

EFFECT OF DEFORMATION WORK AND COOL SPEED ON THE MICROSTRUCTURE REFINEMENT OF METALS

作　　者：任学平[1] 唐 荻[1] 张海冰[1] 崔光春[1] 

机构地区：[1]北京科技大学材料学院,北京100083

出　　处：《金属学报》2002年第3期295-298,共4页Acta Metallurgica Sinica

摘　　要：从理论上推导出了变形功、冷却速度、无形变时的晶粒尺寸与有形变时的晶粒尺寸之间的关系,计算值与实验值吻合较好.研究结果表明:对于具有相变的金属及合金,通过控制变形前组织,增大变形前冷却速度,提高变形功,可使金属组织得到有效的细化.The relationships between deformation work and grain size, cooling speed and transformation temperature during steel processing were established theoretically. All calculated results are in good agreement with those from experiments for Q235 steel, and show that the microstructure of Q235 steel can be refined through controlling original structure, increasing cooling speed before deformation and deformation work in the steel processing.

关 键 词：变形功 铁素体晶粒 冷却速度 金属 合金 晶粒细化 相变 热变形 

分 类 号：TG113.1[金属学及工艺—物理冶金] TG301[金属学及工艺—金属学]