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10. 实验用钢的冲击断口剖面形貌
Fig.10. SEM images of the cross-sectional area of the Charpy impact specimens
(a, b) as-forged (Fig.10a shows cracks initiated at the interfaces of M/A and matrix while Fig.10b shows cracks initiated within fractured M/A)(c, d) 400 ℃ (Fig.10d represents high-magnification image of the rectangular region in Fig.10c)
