稀土元素对中碳钢组织、力学性能和渗氮的影响
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Effect of Rare Earth Addition on Microstructure, Mechanical Property and Nitriding Performance of a Medium Carbon Steel
GUI Weimin(), LIU Yi, ZHANG Xiaotian, HE Liangliang, WANG Ye, WANG Yuandong, HE Erkang, WANG Mengmeng

图3. 各类型夹杂物的数量和夹杂物的尺寸分布

Fig.3. The number of various types of inclusions (a) and the distribution of inclusions size (b)