Microstructure and tribological properties of Fe-Mo alloy-coated steel specimens prepared by low-pressure plasma spraying

作者：Murakami T^*; Sasaki S

来源：Intermetallics, 2011, 19(12): 1873-1877.

DOI：10.1016/j.intermet.2011.08.003

• Thermal properties
• Plasma spraying
• Tribological properties
• Automotive uses
• Wear-resistant applications

Fe(7)Mo(6)-based alloy powder was low-pressure plasma sprayed on SS400 steel substrates, and the microstructure, hardness and tribological properties of the prepared substrates were investigated. Metastable BCC-coated and FeMo-coated steel specimens were obtained by low-pressure plasma spraying. The BCC-type Fe-42at% Mo alloy was stable at temperatures below 955 K. In addition, the BCC-type Fe-42at% Mo alloy coating layer exhibited micro-Vickers hardness as high as the FeMo coating layer. The metastable BCC-coated and FeMo-coated steel disk specimens exhibited friction coefficients as low as Fe(7)Mo(6)-based alloy specimens prepared by spark plasma sintering. Moreover, the specific wear rates of the FeMo/ASTM 52100 steel tribopairs were almost the same as those of the Fe(7)Mo(6)-based alloy/ASTM 52100 steel tribopairs.

• 出版日期2011-12