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3. 实验用钢在不同状态下微观组织的TEM像
Fig.3. TEM images of microstructures of the tested steel under different conditions
(a, b) as-forged (Fig.3a shows the bainitic lath morphology with high dislocation density and lath-like cementites, while Fig.3b shows the MC carbides within bainitic ferrite and the inset shows their corresponding selected area electron diffraction pattern)
(c~f) tempered at 200 ℃ (c), 400 ℃ (d) and 500 ℃ (e, f), respectively
