Abstract
Abrasive wear tests carried out under industrial conditions on facing plates of dies for pressing refractory parts showed that the structure of alloys has a substantial effect on their wear resistance. The first stage of the disintegration of an alloy in abrasive wear is the formation of submicroscopic cracks due to interaction of dislocations in two intersecting slip planes. From the standpoint of energy considerations, this interaction of dislocations occurs more readily in bcc than in fcc metals. It was established that a body-centered cubic lattice has a lower resistance to plastic formation so that the degree of plastic deformation preceding fracture is smaller in bcc than in fcc metals.
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