Ni含量对高强度低合金钢淬透性影响的晶体学认识
苏帅, 韩鹏, 杨善武, 王华, 金耀辉, 尚成嘉

Crystallographic Understanding of the Effect of Ni Content on the Hardenability of High-Strength Low-Alloy Steel
SU Shuai, HAN Peng, YANG Shanwu, WANG Hua, JIN Yaohui, SHANG Chengjia
图4 0.92Ni钢和2.94Ni钢在冷速为0.5℃/s时的SEM像和带有晶界的BC图
Fig.4 SEM images (a, b) and band contrast (BC) (c, d) images with grain boundaries of 0.92Ni steel (a, c) and 2.94Ni steel (b, d) at a cooling rate of 0.5℃/s (M/A—martensite/austenite; G1 and G2: representative grains of two steels; white lines indicate low angle grain boundaries (LAGBs): 5° < θ < 15° (θ—misorientation angle), black lines (15° ≤ θ ≤ 45°) and yellow lines (θ > 45°) indicate high angle grain boundaries (HAGBs))