金属材料の凝固過程における熱伝導と弾-粘塑性応力

概要

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The relation between the Stefan condition during liquid-solid phase transformation process and the general energy jump equation was discussed and a heat conduction equation, in which material constants have jump discontinuities across the melting temperature, was derived for practical use. An elastic-viscoplastic constitutive relation was also presented considering the viscous effects in the high temperature range after solidification. The theory was applied on the casting processes of pure lead and carbon steel, and the temperature and stress distributions were numerically calculated by the finite element method. Casting experiments were also carried out for these two materials, and the temperature distribution and residual stresses were measured to verify the present theory.
社団法人日本材料学会の論文
1982-09-15