Abstract

The effect of annealing treatment on the wear performance of hot-rolled wear-resistant steel–carbon steel–cladded plates was investigated. A novel cladding procedure that can provide high wear resistance, a strong structure, and low cost is typically employed for metallurgical mining equipment, agricultural machinery, coal mining, and other industries. The cladded plates were first annealed at different temperatures and sampled for friction and wear experiments on an RETC MFT-5000 friction–wear tester and then an online 3D optical profiler was used to observe the wear tracks. Finally, the microstructure near the wear track was analyzed by using electron backscatter diffraction. The results show that the wear resistance of the BTW1/Q345R plate becomes weaker with an increase in temperature. Due to the properties of the plate, fluctuations still occur in the stable stage. At the annealing temperature of 860 °C, the cladded plate has the best wear resistance, which is proved with a maximum scratch width of 1.419 mm and a maximum scratch depth of 43.2 μm.

摘要

研究了退火处理对热轧耐磨钢-碳钢复合板磨损性能的影响。可以提供高耐磨性，坚固的结构和低成本的新颖的覆层工艺通常用于冶金采矿设备，农业机械，煤矿开采和其他工业。覆层板首先在不同温度下退火，并在RETC MFT-5000摩擦磨损测试仪上取样进行摩擦和磨损实验，然后使用在线3D光学轮廓仪观察磨损轨迹。最后，通过使用电子反向散射衍射分析了磨损轨迹附近的微观结构。结果表明，随着温度的升高，BTW1 / Q345R板的耐磨性变弱。由于板的特性，在稳定阶段仍会出现波动。在860°C的退火温度下，复合板具有最佳的耐磨性，事实证明最大刮痕宽度为1.419 mm，最大刮痕深度为43.2μm。