硬度测量结果的不确定度评定  

Uncertainty assessment of hardness measurement results

作　　者：史朝刚 董政 陈琳 陈昌华 张龙群 

机构地区：[1]南京迪威尔高端制造股份有限公司技术中心,江苏南京210048 [2]安徽工业大学冶金工程学院,安徽马鞍山243002

出　　处：《物理测试》2017年第6期58-60,共3页Physics Examination and Testing

摘　　要：布氏硬度试验是研究金属材料性能的基本试验之一,其结果的准确性对研究材料特性及评价制品的合格与否都有直接参考价值。对使用King3000布氏硬度计的硬度测量过程中的不确定度进行评定,通过分析硬度测量的原理和过程,全面考虑不确定度的来源,评定各不确定度分量,合成标准不确定度,最终计算出扩展不确定度。The brinell hardness test is one of the basic experiments to study the performance of metal materials,and the accuracy of the results is a direct reference to the research of the material characteristics and the evaluation of the quality of products. The uncertainty of the King3000 brinell hardness tester in the measurement process was evaluated. By analyzing the principle and process of the hardness measurement and fully considering the uncertainty sources,the uncertainty components were evaluated,the synthetic standard uncertainty was obtained and the expanded uncertainty was calculated.

关 键 词：布氏硬度 King3000 综合评定法 标准不确定度 合成不确定度 

分 类 号：TG115.5[金属学及工艺—物理冶金]