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为使金属和合金的显微组织中各相形态的参数控制在一定范围内,以达到预期的性能要求,必须对金相组织进行几何学的定量。定量金相即是在二维平面(或抛光平面)对显微组织作几何测量,然后推算出三维空间中组织特征的方法。它研究的基本方法是几何测量和统计分析。本文只是简要地介绍定量金相的基本原理、晶粒尺寸和两相合金中第二相的大小、分布、体积分数等参数的测定方法及应用,并举例说明组织
In order to control the parameters of each phase in the microstructure of the metal and alloy within a certain range to achieve the expected performance requirements, the geometry of the microstructure must be quantitatively determined. Quantitative metallography is a method of measuring the microstructure in a two-dimensional plane (or polishing plane) and then deducing the tissue characteristics in three-dimensional space. The basic method of its research is geometric measurement and statistical analysis. This article only briefly introduces the basic principles of quantitative metallography, the size of the grain and the second phase of the two-phase size, distribution, volume fraction and other parameters of the measurement methods and applications, and illustrates the organization