一、前言显微硬度计在金属材料的发展、研究、实际试验和质量管理等方面已得到广泛应用。在特殊领域里的硬度,尤其是维氏硬度及克氏硬度作为代用特性,以代替其它材料特性。因此,要求显微硬度计的负荷下限为1克力左右,负荷准确度与通常的维 First, the preface Microhardness tester in the development of metal materials, research, practical testing and quality management has been widely used. In special fields, hardness, especially Vickers hardness and Kovar hardness, are used as substitutes to replace other material properties. Therefore, the requirements of the micro-hardness of the load limit of about 1 gram force, the load accuracy and the usual dimension