Reliability of Friction and Wear Characteristics of Surface-Strengthened Iron-Based Powder Metallurgy Materials

Abstract

With the continuous improvement of metallurgical technology, iron-based powder surface strengthening has become one of the methods of making powder metallurgy. The iron-based powder can improve the friction and wear characteristics of metallurgical materials. This article mainly studies the methods that can strengthen the friction and wear characteristics of iron-based powders. Finally, the amorphous alloy method is used, and then the surface sulfide is used to reduce the friction coefficient and increase the surface hardness of the alloy. Through experiments on the control variables of the sulfurizing formula, the optimal sulfurizing formula is finally obtained. Then through the change of time and temperature, it is concluded that the friction coefficient can be reduced to 0.022 when the time is 3 h, and the wear scar depth is reduced to 0.019 mm. The effect is best when the temperature is 40 °C, and the friction coefficient can be reduced to about 0.02, the depth of the wear scar is also maintained at 0.019 mm.