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In traditionally, the ways to increase the mechanical properties of mental or alloy are adapted by various kinds of thermomechanical and thermal treatment to approve the strength of mental as well as to form the specific appearance.In this study, the equal channel angular pressing (ECAP) was utilized to achieve nanostructure of the Steel 20 and Steel 45 in order to promote their mechanical properties.According to the tribological test of Steel 20 and Steel 45 under different treatment, the results would be analyzed by means of mechanical properties test.