The structure, hardness, carbon content and amount of stabi- lized austenite of a boron cast iron, subjected to various austemperings, and their effects on the resultant wear proper- ties were investigated. The wear tests consisted offriction pairs, where the test pieces were made of B-cast irons previously austempered under various temperature and time conditions. The other friction pair component consisted of a Cr-plated alloyed cast iron. It was found that optimum wear properties were exhibited by austenitizing at 890C fbr two hours, followed by austempering at 350C for two hours.
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