高钒高速钢冷轧辊磨损性能与机制研究

Investigation of Wear Resistance of High Vanadium High Speed Steel Cold Roll

研究了含碳量为1.58％～2．92％，含钒为10％左右的高钒高速钢冷轧辊的组织与力学性能，并与高铬铸铁（Cr20）进行了耐磨性对比研究。结果表明：在该试验条件下，含碳量为2．58％的高钒高速钢耐磨性最佳，其耐磨性为高铬铸铁的5倍。高钒高速钢冷轧辊试样磨损机制均表现为高接触应力下的疲劳剥落。

The wear resistance of high vanadium high speed steel samples of various carbon（ 1.58% - 2.92% ） and high chrome cast iron（Cr20） were examined by applying the apparatus of WM-1 roll frets friction. As a result, high vanadium high speed steel shows much better wear resistance than high chrome cast iron and the high vanadium high speed steel containing 2. 58% C shows best wear resistance in all of them. The wear mechanisms of them are shelling and spelling on the condition of high contacting stress.