维氏硬度检测中不确定度初探

PRELIMINARY STUDY ON MEASUREMENT UNCERTAINTY OF VICKERS HARDNESS TEST

通过分析维氏硬度检测中的不确定度 ,计算了各不确定度分量所占的权重 ,得到HV10 (4 4 0 - 738)范围内的相对不确定度为 1.3%～ 1.7%。

This paper analyses the measurement uncertainty of Vickers hardness test and calculates the fraction of uncertainty for each factor.The relative measurement uncertainty for HV(440-738)is 1.3%～1.7%.