WC/FY-1烧结锻造钢基复合材料性能

采用烧结锻造和合金化技术制备了WC/FY 1烧结锻造钢基复合材料,对材料的组织结构和性能进行了研究·结果表明,FY 1母合金的加入使FY 1烧结锻造钢的密度、强度、硬度及基体的耐磨性大幅度提高,冲击韧性下降·FY 1母合金在WC/FY 1钢的烧结过程中产生了部分液相,因而促进了致密化过程·WC的加入明显地提高了FY 1烧结锻造钢的耐磨性,其中15%WC/FY 1烧结锻造钢的磨损量仅为目前使用的导向辊材料W18Cr4V磨损量的1/5·所制备的WC/FY 1烧结锻造钢基复合材料达到高速线材轧机的导向辊用材的性能要求,因而有望在实际中获得应用·

Properties of Sinter-Forged WC/FY-1 Steel Matrix Composites

The specimens of WC/FY-1 steel matrix composites were prepared through sintering, forging and alloying processes in order to investigate the microstructures and the properties. The results showed that the density, strength, hardness and wearability of the sinter-forged FY-1 steels all increase greatly with the FY-1 master alloy powder addition, but the impact toughness decreases. The addition of FY-1 master alloy powder to the WC/FY-1 steel matrix composites can activate the sintering process by liquid sintering. On the other hand, the WC additive improves significantly wearability of the WC/FY-1 steel matrix composites, by which the wear-out of 15% WC/FY-1 steel matrix composite is just one fifth of the W18Cr4V alloy steel that is used widely to make guide rolls at present. The properties of the 15% WC/FY-1 steel matrix composite can meet the requirement for material to make guide rollers for high-speed wire rolling mill. It is expected that the composites will be applies to roll making soon.