BS EN ISO 4498-2010 不包括硬质金属的烧结金属材料.视硬度和微硬度的测定

标准号：BS EN ISO 4498-2010
中文标准名称：不包括硬质金属的烧结金属材料.视硬度和微硬度的测定
英文标准名称：Sintered metal materials, excluding hardmetals - Determination of apparent hardness and microhardness
标准类型：H16
发布日期：2010/7/31 12:00:00
实施日期：2010/7/31 12:00:00
中国标准分类号：H16
国际标准分类号：77.040.10;77.160
适用范围：1.1 This International Standard specifies methods of hardness testing of sintered metal materials, excludinghardmetals.1.2 Procedure 1 determines the apparent hardness of the whole material.Procedure 1? applies to sintered metal materials which have either not been subjected to any heat treatment, or whichhave been heat treated in such a way that the hardness is essentially uniform to a depth of at least 5 mmbelow the surface,? applies to the surfaces of sintered metal materials which have been treated in such a way that thehardness is not uniform in the section to a depth of 5 mm below the surface,? therefore applies to materials in which the hardness is obtained essentially by surface enrichment bycarbon, or by carbon and nitrogen (for example by carburizing, carbonitriding, nitrocarburizing orsulfidizing), and? applies to materials which have been induction hardened.1.3 Procedure 2 determines the microhardness of the metal phase.Procedure 2? applies to all types of sintered metal materials,? is used, in particular, to determine the hardness profile of case-hardened or carbonitrided materials inaccordance with the method described in ISO 4507, and? also applies to any sintered metallic materials which have been subjected to surface treatments such aselectrodeposited plating, chemical coating, chemical vapour deposition (CVD), physical vapour deposition(PVD), laser, ion bombardment, etc. To determine the microhardness of treated surfaces, Procedure 2applies.