相変態の応力依存性を考慮した鋼の焼入れにおける温度, 組織および応力の解析

概要

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A set of constitutive relations relevant to the analysis of quenching process of steel was presented by taking the coupling effects of temperature, stress and metallic structure into consideration. A particular attention was given to the stress dependence of phase transformation from austenite into pearlite and martensite when the evolutional equation for the volume fraction of each phase was formulated. The quenching process of S45C steel cylinder from 850℃ was analyzed by means of the finite element technique with the proposed relations, and discussions were made on the effect of stress on transformation kinetics as well as the contribution of heat generation due to mechanical works. The calculated results were compared with the experimentally measured distributions of temperature, structure and stress in the cylinder.
1983-09-15