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分析了用低负荷维氏硬度计测定材料表面硬度时常被忽视的问题,即压痕对角线的方向和试验力的选择。指出测定硬度时应注意压痕对角线的方向,给出结果应标明压痕对角线与试样外观方向的位置;试验力选择应尽可能大些,以降低测量误差。
The problems that are often overlooked when measuring the surface hardness of a material with a low load Vickers hardness tester are analyzed, namely the direction of the indentation diagonal and the choice of test force. It is pointed out that the direction of the diagonal of the indentation should be noticed when measuring the hardness, and the result should indicate the position of the diagonal of the indentation and the direction of appearance of the specimen; the test force should be chosen as large as possible to reduce the measurement error.