Материалы металлические спеченные, кроме твердых сплавов. Определение кажущейся твердости. Часть 2. Сплавы на основе железа после цементации или цианирования поверхности
Название (англ.):
Sintered metal materials, excluding hardmetals; Determination of apparent hardness; Part 2 : Case-hardened ferrous materials, surface enriched by carbon or carbon and nitrogen
Описание (англ.):
Applies to sintered materials which have been heat treated in such a way that hardness is not uniform in the section to a depth of 5 mm below the surface (by treatments such as carburizing, carbonitriding, nitrocarburizing or sulphidizing). Gives principle, apparatus, sampling and preparation of test pieces, test requirements, expression of results and test report.t.