热作模具用Dievar钢奥氏体形成转变动力学  

Dynamics of austenitic transformation of Dievar steel for hot-work mold

作　　者：邹忠华[1] 蔡红 卢军 王琦 邵光杰[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]上海市机械制造工艺研究所有限公司,上海200070

出　　处：《金属热处理》2011年第11期11-14,共4页Heat Treatment of Metals

摘　　要：采用Gleeble热模拟试验测定了Dievar钢连续加热过程中奥氏体形成的动力学曲线(CHT)。然后,根据等温转变动力学与连续转变动力学间的关系计算求得奥氏体等温形成的动力学图(IHT)。并经计算机拟合求得奥氏体等温形成和转变量的方程式。The austenitic transformation dynamics curves（CHT） of Dievar steel during the continuous heating were measured by means of Gleeble hot simulation machine.Based on the relationship between isothermal transformation and continuous transformation dynamics,the austenite isothermal transformation dynamics diagram is converted.Then,the formulae of austenite isothermal transformation and the transformation amount are fitted by computer.

关 键 词：热作模具钢 连续加热转变 等温加热转变 迭加法则 

分 类 号：TG151.1[金属学及工艺—热处理]