【摘要】 在传统ICDP轧辊工作层材质中添加1.6%的合金元素钒，生产出钒元素强化型E-ICDP轧辊。通过对添加V前后两种轧辊材料硬度、显微组织和磨损情况进行检测、比较和分析发现添加合金元素钒改变了显微组织中碳化物和石墨的形态和分布，基体中形成的细小、弥散分布的MC型碳化物可以提高基体耐磨性、降低热裂纹扩展速度。统计对比了这两种轧辊在不同轧线的使用性能，结果表明E-ICDP轧辊较ICDP轧辊平均每毫米轧制量提升11.37%、平均单次轧制量增加6.22%、平均单次磨削量降低4.61%。较高的耐磨性、较慢的裂纹扩展速度和较高的基体强度是E-ICDP轧辊轧制性能优于ICDP轧辊的主要原因。更多还原

【Abstract】 The vanadium reinforced E-ICDP roll was produced by adding 1.6% vanadium alloyed element to the working layer of the traditional ICDP roll. The hardness, microstructure, and wear condition of the two roller materials were tested, compared, and analyzed. It was found that the addition of alloying element vanadium changed the morphology and distribution of carbide and graphite in the microstructure, and the formation of fine, dispersed MC type carbide in the matrix could improve the wear resistance of the matrix and reduce the speed of hot tearing propagation. The statistical comparison of the performance of two types of rollers in different rolling lines shows that the average millimeter rolling capacity of E-ICDP roller is 11.37% higher than that of ICDP roller, the average single rolling capacity is 6.22% higher, and the average single grinding capacity is 4.61%lower. High wear resistance, slower crack growth rate, and higher substrate strength are the main reasons why the rolling performance of E-ICDP roller is superior to that of ICDP roller.更多还原