Abstract
1. The highest antifriction properties are generally exhibited by materials sintered in a vacuum. Exceptions in this respect are porous iron and ZhGr1 irongraphite material, for which hydrogen and converted natural gas, respectively, were found to be the best sintering atmospheres. 2. The highest wear resistance is exhibited by ZhGr2, ZhGr3, and ZhGr1K1 materials. 3. Adding sulfur to the charge upon increasing the latter's graphite content improves the antifriction properties of iron-graphite materials sintered in all the atmospheres investigated.
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