ISO 4970-1979 钢 薄表面硬化层的总深度或有效深度的测定

标准号：ISO 4970-1979
中文标准名称：钢 薄表面硬化层的总深度或有效深度的测定
英文标准名称：Steel; Determination of total or effective thickness of thin surface-hardened layers
标准类型：H24
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：H24
国际标准分类号：17.040.20
适用范围：Specifies the micrographic method and the microhardness measurement method. Applies to thin surface layers, with thicknesses of less than or equal to 0.3 mm, obtained, for example, by mechanical (shot blasting, shot peening, etc), thermal (flame or induction hardening, etc) or thermochemical (carbonitriding, carburizing and hardening, etc) treatment. It is not applicable to thin surface layer which are not continuous with the basis metal.