摘要
The effects of subsurface hardness on wear-resistance of martensitic steel20Cr, 40CrSi, 60Mn, T8 and T10 in three-body abrasion under static load was investigated. It showsthat the characteristic of the subsurface hardness distribution and the abrasive wear resistance isrelated to the substructure near the worn surface. The substructure of the tested martensite steelhas an apparent relationship with the carbon content and steels with moderate carbon content andhardness exhibit good resistance to abrasive wear. The competition of the work-hardening effect andthe temper softening effect, which resulted from deformation and friction heat generating duringabrasive wear is considered to be a main reason for the relation among wear-resistance, hardness andsubstructure. At the test conditions, the wear-resistance of 40CrSi is the best.
The effects of subsurface hardness on wear-resistance of martensitic steel20Cr, 40CrSi, 60Mn, T8 and T10 in three-body abrasion under static load was investigated. It showsthat the characteristic of the subsurface hardness distribution and the abrasive wear resistance isrelated to the substructure near the worn surface. The substructure of the tested martensite steelhas an apparent relationship with the carbon content and steels with moderate carbon content andhardness exhibit good resistance to abrasive wear. The competition of the work-hardening effect andthe temper softening effect, which resulted from deformation and friction heat generating duringabrasive wear is considered to be a main reason for the relation among wear-resistance, hardness andsubstructure. At the test conditions, the wear-resistance of 40CrSi is the best.
