中文摘要：

对比高铬铸铁轧辊，利用自制的模拟轧辊磨损试验机，研究了不同碳含量的Fe—V—Cr—Mo合金轧辊的磨损性能。结果表明：合金轧辊的耐磨性为高铬铸铁轧辊的1．15-5．93倍。随碳含量升高，Fe—V—Cr—Mo合金轧辊中VC的形态由杆状逐渐转变为球状、开花状，基体由铁素体逐渐转变为板条马氏体、片状马氏体和残余奥氏体的复合组织。球状VC及板条马氏体基体有助于耐磨性提高，而大尺寸的开花状VC及低硬度铁素体或高硬度脆性大的片状马氏体基体对耐磨性不利。碳含量约为2．58％时，合金轧辊组织主要由近球状的VC及板条马氏体基体组成，硬度适中，可以同时有效的抵御轧制过程中的显微切削及疲劳磨损，耐磨性最佳，碳含量的过高或过低均导致轧辊耐磨性下降。

英文摘要：

The microstructures and wear properties of Fe-V-Cr-Mo alloy rolls with different carbon content were studied via electron microscope and roll-simulation-wear testing machine developed by authors. Results show that the relative wear resistance of the Fe-V-Cr-Mo alloy rolls are about 1.15-5.93 times than that of high chromium cast iron roll. The shape of VC in Fe-V-Cr-Mo alloy is changed from rod, spherical to flower shape and the microstructure of matrix is transformed from the ferrite, lath martensite to the mixture of plate martensite and retained austenite with increasing of the carbon content. The wear resistance of alloy roll depends on microstructure, including carbide morphology and matrix type. Spherical VC and lath martensite microstructures are helpful for wear resistance. But variolate VC with bigger size the ferrite with low hardness, or plate martensite with poor friability, matrix microstructures do harm to wear resistance. With carbon content of 2.58%, the composition microstructure of spherical VC and lath martensite and proper hardness were acquired, Therefore, resulting in optimal wear property. No matter the carbon contents increases or decreases, the wear properties of rolls will become poorer.