特殊钢 ›› 2021, Vol. 42 ›› Issue (2): 24-27.
姚宙1,刘红艳1,2,邓想涛2,于光远1,许伟1
Yao Zhou1 , Liu Hongyan1,2, , Deng Xiangtao 2, Yu Guangyuan1 Xu Wei1
摘要: 设计和开发了压路机振轮用耐磨钢NM360(/%:0.10~0.15C,0.50~1.50Mn,≤0.001P,≤0.008S,0.20~0.50Mo,0.015~0.03Nb,0.018~0.15Ti,≥0.035Als,0.0012~0.003 0B,≤0.008N,≤0.0003 H,≤0.003O)32 mm板。900℃淬火+200℃回火后,该钢组织为回火马氏体;抗拉强度1150~1182 MPa,延伸率15%~17.5%;冲击功150~226 J;表面HBW布氏硬度值385~402;冷弯直径为32 mm,冷弯角度45°、90°、150°和180°冷弯试验全部合格;采用GM120焊丝焊接后,焊接接头抗拉强度为1 052 MPa,焊缝冲击功为58~63 J,焊缝HV硬度值390~396。