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
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

图4. 实验用钢在不同状态下的EBSD图像质量图、相图及晶界取向差分布

Fig.4. EBSD image quality (IQ) map (a), phase maps (b~e) and misorientation distribution (f) of the tested steel under different conditions (The red phase is austenite while the white phase is ferrite, and the blue lines are low-angle boundaries with misorientation angles between 2° and 15° while the black lines are high-angle boundaries with misorientation angles over 15°)
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(a, b) as-forged (c) 200 ℃ (d) 400 ℃ (e) 500 ℃ (f) misorientation distribution