The evaluation of the impression made by Vickers pyramid and the rigid ball indentation method were used to determine the brittleness of nitrided layers of several industrial steels at various nitriding temperatures.

• 采用维氏硬度压痕法和刚性球体压入法测试了几种工业用钢在不同氮化温度下氮化层的脆性，并对影响表层脆性的因素进行了分析。