方剑, 邹喜洋, 谢凯意, et al. A Study on Recrystallization of Non-Quenched-Tempered Steel 40Mn2V during Thermal Deformation[J]. Special Steel, 2009, 30(5): 65-67.
方剑, 邹喜洋, 谢凯意, et al. A Study on Recrystallization of Non-Quenched-Tempered Steel 40Mn2V during Thermal Deformation[J]. Special Steel, 2009, 30(5): 65-67.DOI:
采用Gleeble-1500热模拟机测得40Mn2V微合金化非调质钢(%:0.38C、1.48Mn、0.12V)Φ90 mm管坯在800~1 000℃、变形速率0.5~2.0 s
-1
时的真应力-应变曲线
并研究了该钢的动态再结晶行为。结果表明
40Mn2V钢的动态再结晶激活能Q
d
为382.21 kJ/mol
通过动态再结晶图得出
因子Z>2.621×10
15
时
40Mn2V钢动态再结晶难以完成
当因子Z>2.014×10
17
时
该钢动态再结晶难以发生。
Abstract
True stress-strain curves of 690 mm tube blank of microalloying non-quenched-tempered steel 40Mn2V (% :0.38C
1.48Mn
0.12V) with defonnation rate 0.5~2.0 s
-1
at 800~1000 °C have been measured by Gleeble-1500 thermal simulator to study the dynamic recrystallization behavior of the steel. Results show that the dynamic recrystallization activation energy Q
d
of steel 40Mn2V is 382.21 kJ/mol ; it is obtained by dynamic recrystallization figure that it is difficult to complete the dynamic recrystallization of steel 40Mn2V as factor Z >2. 621 x 10
15
and occurrence of the dynamic recrystallization of steel is difficult as factor Z >2. 014 x 10