The evaluation of measuring uncertainty in metallic material Brinell hardnesstest is studied by testing the hardness of the 45 quenched and tempered steel.
以45#调质钢硬度试验为例，研究了金属材料布氏硬度试验中测量不确定度的评定。
2
The hardness of all metals samples can be continuously established with the same scale by Vickers hardnesstest. But the test methods are inefficient.
只有维氏硬度试验可以使所有金属建立起连续一致的维氏硬度标度，但原试验手段效率低。
3
The effect of uncertainty evaluation in Rockwell hardnesstest is described by analyzing and calculating the uncertainty of metal in Rockwell hardnesstest.