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稀土元素对中碳钢组织、力学性能和渗氮的影响
桂伟民(), 刘义, 张晓田, 何亮亮, 王晔, 王元栋, 贺尔康, 王梦梦
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4. 0RE和0.03RE试验钢中夹杂物的金相照片

Fig.4. Optical micrographs of inclusions in the 0RE (a) and 0.03RE (b) tested steels