パーライト可鍛鑄鐵の研究

概要

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Made studies on some conditions in heat treatment (heating velocity, heat retaining time and cooling velocity) on composition of white cast iron, and on the effect of special elements, to secure the perfect pearlitic structure. The results obtained were as follows : - (1) The time of graphitization at 900℃ being shortened by increasing Si contents ; (2) Impossible to produce perfect pearlitic structure by increasing Si contents ; (3) Heat retaining time, cooling and heating velocities conspicuously effect the production of perfect pearlitic structure ; (4) Obtained the diagram of relation betwen chemical composition and beat treatment condition ; (5) The size of temper carbon proved to be big when heating velocity increased ; (6) Justified the effects of special elements (Mn, S, Cr, Mo, V, Ni, Cu, Al etc) ; (7) Mn 0.7∿1.25% is most effective for elimination of free ferrite.
社団法人日本鉄鋼協会の論文
1949-05-25