Investigation of the tribological properties of antifrictional aluminum alloys using sclerometry

摘要: The research is devoted to investigating new aluminum alloys that are promising substitutes of expensive bronzes in friction units. A procedure has been proposed for preselecting experimental using sclerometry. Microcutting stress σmc was used as a criterion score resistance. Two based on the Al-Si-Cu-Sn-Pb system, which closest BrOTsS 4-4-17 bronze their mechanical properties, have selected from series test pieces with various compositions. Tribological investigations by shaft-partial bushing scheme carried out. results verified possibility bearings at pressures P ≤ 3 MPa. structure and chemical composition surface layers both source samples after testing studied. effect property tribological properties investigated shown.