冷轧薄板m值的测试与分析  

THE ANALYSIS AND MEASUREMENT OF m VALUE FOR COLD ROLLED SHEETS

作　　者：邱晓刚[1] 陈亚彪[1] 

机构地区：[1]攀枝花钢铁研究院,攀枝花617000

出　　处：《理化检验（物理分册）》2003年第11期564-567,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用速度突变法、等应变速率拉伸法测定了应变速率敏感指数(m值)。探讨了拉伸速度的变化和变形程度对m值测试结果的影响。结果表明,增加试验速度,使m值测试结果提高。在相同的试验条件下,对不同材料的m值进行了测试分析。The exponent ( m value)of strain rate sensitivity was determined using rate sudden changing and iso-strain rate tensile test. The effects of tensile speed change and different speed changing positions on the m value were discussed. The results showed that the m value is increased as the tensile speed is raised. The m values of different materials were measured and analyzed under same test conditions.

关 键 词：冷轧薄板 速度突变法 等应变速率拉伸法 应变速率敏感指数 拉伸速度 变形程度 

分 类 号：TG115.52[金属学及工艺—物理冶金] O344.1[金属学及工艺—金属学]