一种定量测定钼系高速钢共晶碳化物不均匀度的新方法

A New Method for Determining the Inhomogeity of Eutectic Carbides in Mo-series High Speed Steels

摘要: 采用计算机技术在图像仪上对钼系高速钢共晶碳化物的不均匀度进行了分析测定,试验数据用计算机进行拟合,并用试样分析验证了新方法测定结果的偏差值.结果表明:碳化物总面积百分数x1、碳化物条带的平均宽度x3、条带内碳化物占整个碳化物面积的比例x4等特征参数与衡量共晶碳化物不均匀度的级别y之间的关系可定量表示为Y=-2.133 0+0.223 7x1-11.049 0x3+0.107 3x4,实测结果证明了该方法的有效性.

Abstract: The inhomogenous distribution degree of eutectic carbides in Mo-series high speed steels has been determined in automatic image analyzer,all experimental data were regressed at the aid of a computer.The results indicated that the total area percentage of carbide,the average width of carbide band,the percent of carbides in band per total carbides were the numeric parameters to measure this inhomogenous distribution,and the quantitative relationship between the rating numbers in Mo-series HSS and these parameters could be represented as Y=-2.133 0+0.223 7x1-11.049 0x3+0.107 3x4.The results have been proved effectively by real specimens.