18Cr ステンレス鋼板におけるリジング現象と断面偏析模様について

概要

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The correspondence of the unduration of ridging after tensile test to that of microscopic etch-pattern due to the segregation of Cr and C in 18% Cr cold rolled and annealed stainless steel sheet was observed. The results are as follows. (1) A laminated etch-pattern is observed at the center layer of transverse cross-section of hot rolled band. This laminated etch-pattern becomes wavy and is observed in the full-thickness of cold rolled and annealed sheet. (2) The unduration of wavy etch-pattern nearly corresponds to that of ridging appeared after stretching the specimen to its rolling direction by 20%. (3) The height of unduration of ridging is proportional to that of wavy etch-pattern. (4) These facts suggest that the wavy etch-pattern to be the origin of ridging phenomenon in this steel sheet.
社団法人日本鉄鋼協会の論文
1979-10-01