回火对钒钛微合金化Mn-Cr系贝氏体型非调质钢组织和性能的影响
王占花, 惠卫军(
), 谢志奇, 张永健, 赵晓丽
), 谢志奇, 张永健, 赵晓丽
Effects of Tempering Temperature on Microstructure and Mechanical Properties of a Mn-Cr Type Bainitic Forging Steel
WANG Zhanhua, HUI Weijun(), XIE Zhiqi, ZHANG Yongjian, ZHAO Xiaoli
), XIE Zhiqi, ZHANG Yongjian, ZHAO Xiaoli
图6. 实验用钢在锻态及不同回火温度下的示波冲击载荷(能量)-位移曲线
Fig.6. Variations of absorbed energy and impact load with displacement obtained in the instrumental impact tests of the tested steel under different conditions (Py—yield load, Pm—maximum impact load, Pf—brittle fracture start load, Pa—fracture arrested load, E1—elastic deformation energy, E2—plastic deformation energy, E3—crack propagation energy, E4—brittle fracture energy, E5—post-brittle fracture energy)
(a) as-forged (b) 200 ℃ (c) 400 ℃ (d) 500 ℃
