テクスチャー解析を用いたマルテンサイト粒度および破面単位の定量化

抄録

Bundle sizes of the martensite structures and facet sizes of brittle fracture surfaces were measured in quenched and tempered 80 kgf/mm² steels by applying a technique of texture analysis. The cooccurrence matrix derived by HARALICK was useful to analyse degital images of the martensite structures and the brittle fracture surfaces.
The contrast parameter which is one of the parameters derived from the cooccurrence matrix, was found to have good relationships with the bundle size of the martensite structure and the facet size of the brittle fracture surface. Therefore, a bundle size and a facet size can be quantitatively known by measuring contrast parameters of a martensite structure and a brittle fracture surface, respectively.