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定量金相分析是研究材料组织和性能的重要方法。为提高处理金相照片的自动化程度和准确度,本文以数学分析软件Matlab为工具,使用数学形态学方法对铸造镁合金AM50的试样的全部金相照片进行数字图像处理和定量金相分析,得到了晶粒尺寸在整个试样上的分布规律。结果表明数学形态学方法可以应用于预处理、后处理和数据分析等多个环节中,分析快速准确,并且有着很好的自适应性,可用于批量处理以进行统计分析。该方法原理明确,操作简单,可以推广到其他材料的定量金相分析中。
Quantitative metallographic analysis is an important method to study the structure and properties of materials. In order to improve the degree of automation and the accuracy of processing metallographic photographs, this paper uses mathematical morphology analysis software Matlab as a tool to perform digital image processing and quantitative metallographic analysis of all the metallographic photographs of the cast magnesium alloy AM50 samples, The distribution of grain size on the whole sample was obtained. The results show that the mathematical morphology method can be applied to many aspects such as preprocessing, postprocessing and data analysis, the analysis is fast and accurate, and has good adaptability, which can be used for batch processing for statistical analysis. The method has clear principle, simple operation and can be extended to quantitative metallographic analysis of other materials.