Evaluation of Structure, Phase Composition, and Operating Properties of Coatings Made by Laser Surfacing. Part 2 super()

Questions are considered of reaction of an offshore oil and gas structure (OOGS) base with a stream of sand or other bottom deposits, which cause hydroabrasive wear of metal and concrete parts of underwater zone structures. A test procedure is developed for corrosion and mechanical wear with surface friction of test specimens in a mass of loose abrasive moistened with corrosive marine medium in order to evaluate the life of materials used for strengthening these OOGS zones. Tests are performed on multilayer coatings prepared by laser surfacing. Surfacing layer microhardness, structure, phase composition, and wear rate are evaluated during tests.