微量Nb对低碳合金耐磨铸钢的力学及摩擦磨损性能的影响  

Influence of micro-Nb on mechanics and friction&wear properties of low carbon alloy wear-resistant cast steel

作　　者：白云 孙亚肖 李富强 赵延阔 BAI Yun;SUN Yaxiao;LI Fuqiang;ZHAO Yankuo(CRRC Qishuyan Locomotive&Rolling Stock Technology Research Institute Co.,Ltd.,Changzhou 213000,Jiangsu China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所有限公司,江苏常州213000

出　　处：《中国铸造装备与技术》2022年第1期84-87,共4页China Foundry Machinery & Technology

摘　　要：研究了Nb对低碳合金铸钢性能的影响,并研究了Nb微合金化低碳合金钢的滑动磨损机理。当Nb含量达到0.06%左右时,材料抗拉强度达到1545MPa,有良好的力学性能和耐磨性能。载荷250~500N时,磨损机理主要是磨粒磨损;载荷增加到800N时,表现为粘着磨损。The influence of Nb on the properties of low-carbon alloy cast steel and the sliding wear mechanism of Nb micro-alloyed low-carbon alloy steel have been studied.When the Nb content reaches about 0.06%,the tensile strength of the material reaches 1545 MPa,which has good mechanical properties and wear resistance.When the load is 250~500 N,the wear mechanism is mainly abrasive wear;when the load is increased to 800 N,it appears as adhesive wear.

关 键 词：低碳合金钢 力学性能 摩擦磨损 

分 类 号：TG142.13[一般工业技术—材料科学与工程]