Abstract��Vickers hardness testing process for cold rolled sheet is very complicated. Along with the thickness of cold rolled sheet decreases, the phenomena of the sample being penetrated by the indenter ball become more distinct, so that the testing result fluctuats seriously and it is largely away from the true value.In this investigation, different scales of superficial rockwell hardness and different sample treatment methods were adopted, and the superficial rockwell hardness testing results had been compared with the vickers hardness testing results. Comparison results show that, HR15T and HR30T superficial rockwell hardness testing methods with diamond support adapted to the hardness testing of cold rolled sheet. In the HR15T and HR30T test, the polishing process of sample surface is unnecessary, and there were no obvious indentations on the back of the test piece, resulting into small divergence and high accuracy.
���������ٷ棬���ģ�����Ӱ. ��������Ӳ�Ȳ��Է�����ѡ��[J]. �й������ڿ���, 2013, 31(4): 18-21.
LIU Dong,LI Rong-feng,QIU Bao-wen,DU Li-ying. Suitability of Hardness Testing Methods for Cold Rolled Sheet. Chinese Journal of Iron and Steel, 2013, 31(4): 18-21.
2013, Vol. 31 
