Erosion and abrasion characteristics of high manganese chromium irons

Fe-Cr alloys containing 5 and 10 wt.% manganese are cast in variously-sized gray cast iron moulds. Castings are quenched and tempered. They are then tested for resistance to solid particle impingement erosion and dry-sand rubber wheel abrasion. Increasing the manganese content decreases the hardness and wear resistance. Decreasing the section thickness improves the wear resistance and hardness. Optical microscopy and scanning electron microscopy are used to evaluate the wear properties associated with microstructural constituents.