片状黒鉛鋳鉄の機械的性質に及ぼす黒鉛と基地の影響 Influence of Graphite Morphology and Matrix on Mechanical Properties of Flake Graphite Cast Iron
The microstructure of flake graphite cast iron is the most important factor in determining the mechanical properties. The microstructure consists of two principal parts : the graphite and the matrix. Therefore, the present paper discusses the influence of the matrix and graphite morphology on mechanical properties. Graphite morphology was varied based on inoculation and holding of the melt and the addition of Ti. The influence of matrix on the tensile properties of cast iron were investigated using kinds of heat treatments. The experimental results were as follows : (1) The influence of graphite morphology on tensile strength of cast iron can be explained by the Rule of Mixture. (2) In the case of the difference of elongation between A-type graphite samples and D-type graphite samples is more than 0.4%, we can use the Rule of Mixtures. But when the difference is less than 0.2%, can not be used the Rule.
- 鋳造工学 = Journal of Japan Foundry Engineering Society
鋳造工学 = Journal of Japan Foundry Engineering Society 69(7), 562-569, 1997-07
Japan Foundry Engineering Society