摘要
Characteristic grain size. Gc, is defined in the present paper. It indicates an intrinsic size of grainfor a given system. and has the following advantages over the average grain size which is based on a statisticalmean value of the linear intercept length of grains’ (1) The characteristic grain size G. has clear and determined geometric meaning. i. e. Gc refers to two times of the area-weighted average height of the surface elements to the centroid of grain or the average length of the chord through the centroid of grain: (2) The valueof G. can be directly obtained without introducing any correcting factors such as grain shape or grain size distribution factors. Generally. Gc is larger than the average grain size G when the Heyn intercept method isadopted for the grain size measurement.
Characteristic grain size. Gc, is defined in the present paper. It indicates an intrinsic size of grainfor a given system. and has the following advantages over the average grain size which is based on a statisticalmean value of the linear intercept length of grains' (1) The characteristic grain size G. has clear and determined geometric meaning. i. e. Gc refers to two times of the area-weighted average height of the surface elements to the centroid of grain or the average length of the chord through the centroid of grain: (2) The valueof G. can be directly obtained without introducing any correcting factors such as grain shape or grain size distribution factors. Generally. Gc is larger than the average grain size G when the Heyn intercept method isadopted for the grain size measurement.
