歯車の浸炭焼入過程における変態塑性を考慮した温度, 組織および応力の解析

概要

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A method for the simulation of carburized-quenching presented in this paper,which takes into account the coupling effect of temperature,stress and metallic structure. Here,emphasis in placed on the role of transformation plasticity. The constitutive equation of the transformation plastic was determined experimentally assuming that the strain rate is proportional to the applied stress for both pearlitic and martensitic transformations. The carburized-quenching process of a steel gear of 1.8%Ni-0.6%Cr-0.25%Mo with 0.2%C(SNCM420HK) was analyzed by use of the finite element method,and the calculated results of carbon content,temperature,metallic structure and stress were compared with the experimental data. The distribution of the residual stress revealed that the transformation plasticity should be introduced in the simulation.
社団法人日本材料学会の論文
1986-12-15