Friction Behavior and Self-Lubricating Mechanism of SLD-MAGIC Cold Worked Die Steel during Different Wear Conditions

Wear tends to shorten tool life, reduce component quality. To prevent or postpone the wear of steel forming tools, methods increase resistance, such as increasing material hardness, optimizing carbide distribution and application surface coatings, are often used. However, formation lubricating phases in steels leading anti-attrition is less investigated. The friction behavior three were investigated thoroughly by a tribo test with different normal loads. A Field-emission scanning electron microscope (FE-SEM) along energy dispersive X-ray spectroscopy (EDS) used characterize microstructure well influence precipitated on mechanisms. Results showed coefficient decreased load, whereas rate increased load. Compared SKD11 DC53 steels, volume SLD-MAGIC reduced 0.1 0.3 10% 30%, respectively. With mechanism changed order from abrasive wear, adhesive oxidation wear. more contents, rounder carbide, better resistance steel. It can be shown that, under loads, exhibits performance than which mainly due self-lubricating phenomenon was fact that exfoliated sulfide during formed film