分别采用截点法和面积法对GB/T 6394-2017标准图谱中5张第I系列评级图进行晶粒度测量,并对结果进行比对分析.结果表明:采用不同测量方法得出的晶粒度级别存在偏差;以矩形面积法结果为基准进行比对时,使用截点法的横纵测量网格线进行截点计数得到的结果最合理,精确度在0.15级范围内.在进行等轴晶粒度测量时,使用截点法更简便、快捷,建议采用截点法的横纵测量网格来测量晶粒度.
The grain size of the five I-series rating graphs in the GB/T 6394-2017 standard spectrum was measured using the intercept method and the area method respectively,and the results were compared and analyzed.The results show that there were deviations in the grain size levels obtained using different measurement methods.When comparing with the results of the rectangular area method,the most reasonable result was obtained when using the horizontal and vertical measurement grid lines of the intercept method to count cut off points,with an accuracy within the range of 0.15.When measuring equiaxed grain size,using the intercept method was more convenient and efficient.It was recommended to use the horizontal and vertical measurement grid of the intercept method to measure grain size.
武甲;王明辉;杨荣光;周志超;雷娜;赵乃胜;杨艳龙;张海燕;谢新艳;沈洁
北京首钢股份有限公司, 迁安 064404北京首钢吉泰安新材料公司, 北京 102206
晶粒度;截点法;面积法;测量网格
grain size;intercept method;area method;measurement grid
《理化检验-物理分册》 2024 (003)
23-26 / 4
10.11973/lhjy-wl202403006
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