[15P-T11-02] Withdrawn
The rapid development of modern industry has made traditional ferrous antifriction materials (FAMs) cannot completely meet some applications at elevated temperatures. In this work, Mo-coated MoS2 powders were prepared by a liquid phase coating-hydrogen reduction method. Fe-15Cu-0.8C-3.75(Mo-coated MoS2) materials were prepared by powder metallurgy from Fe, Cu, graphite and 3.75(Mo-coated MoS2) mixed powders, their microstructure and tribological properties at elevated temperatures were investigated. It is found that the addition of Mo-coated MoS2 powders effectively avoids the decomposition of MoS2 during sintering process, improves the bonding strength between the MoS2 and the matrix, and significantly improves antifriction performance of sintered Fe-15Cu-0.8C samples at elevated temperatures. Compared with the sintered Fe-15Cu-0.8C samples, the sintered Fe-15Cu-0.8C-3.75(Mo-coated MoS2) samples has good antifriction properties with a friction coefficient of 0.23 and wear rate of 6.3 × 10-7 mm3/N·m under high-temperature friction and wear test.