15MnV钢热变形中组织变化的数学模型  

Mathematical Model for Evoluation Microstructural Changes for 15MnV Steel in Hot Deformation

作　　者：崔文暄[1] 王伟哲 

机构地区：[1]北京科技大学材料科学与工程系

出　　处：《北京科技大学学报》1993年第1期55-59,共5页Journal of University of Science and Technology Beijing

摘　　要：采用热压模拟机研究了15MnV钢热形变中及其以后的冷却中的组织变化。得到计算组织变化的数学模型。该模型中包括有:单道次形变、多道次形变、等温形变、连续冷却形变等条件的奥氏体再结晶动力学、再结晶晶粒尺寸、再结晶后的晶粒粗化,以及热变形奥氏体转变的铁素体等。用模型计算的结果与实测值吻合较好。With hot press simulator the microstructural changes of 15MnV steel in hot deformation and subsequent cooling was investigated. A methematical model for evoluation the microstructural changes is obtained. The model consists: austenite recrystallization kinetics, recrystallizied grain size, grain coasenning after recrystallization in single pass and multiple passes deformation under isothermal and continous cooling conditions, and the ferrite transformed from hot deformed austinite. Good agreement was obtained between the results predicted and measured.

关 键 词：钒钢 轧制 再结晶 变形 HSLA钢 

分 类 号：G142.41[文化科学]