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显微硬度显微硬度目前还没有一个确切的定义。一般说来,把最大负荷为1公斤的硬度计称为显微硬度计,由此而测得的硬度值称为显微硬度。严格区分起来: 荷重在200克以下为显微硬度; 荷重在200～300O克为低负荷硬度; 荷重在3000克以上为宏观硬度。 1克至50克的负荷是最典型的显微硬度范围,100克是上限(或者最大到200克为上限)。显微硬度目前已成为金相研究中主要的手段之一。用来鉴别多元合金中的相和结构、晶内偏析与固溶体不均匀度的测定、检查热处理质量(如渗碳、高频淬火、氰化、氮化、时效等),还可用来测定镀层和细小物品的硬度、以及进行各种废品分析……。国外,在这方面做的工作很多,许多国家都有自己的国家标准。在仪器方面,自动化的程度在不断地
Microhardness Microhardness is currently not an exact definition. In general, the maximum load of 1 kg of the durometer as a microhardness tester, the resulting hardness value is called the microhardness. Strict distinction between: the load below 200 grams for the microhardness; load 200 ~ 300O grams of low load hardness; load above 3000 grams for the macro hardness. A load of 1 gram to 50 grams is the most typical range of microhardness, with 100 grams being the upper limit (or up to 200 grams being the upper limit). Microhardness has now become one of the main means of metallographic research. Used to identify multi-alloy phase and structure, intragranular segregation and the determination of non-uniform solid solution, check the quality of heat treatment (such as carburizing, induction hardening, cyanidation, nitriding, aging, etc.), can also be used to determine the coating and The hardness of small items, as well as a variety of waste analysis ... .... Abroad, there are many jobs in this area and many countries have their own national standards. In terms of instrumentation, the degree of automation is constantly changing