銅-アルミニウム共析合金の相変化と微小かたさ

概要

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Micro-Vicker's-hardness of five typical phases obtained by different kinds of heat-treatment of Cu-Al eutectoid alloys were measured, comparing with their phase-transformations occurred in heating them from room temperature. Fundamental phase-transformation process of quenched specimen which had already been observed in micro-structural, specific heat, electric resistance and X-ray investigations, β'→β_1→P→β was also verified by the results of the above high-temperature hardness testing. But both an abnormal transition observed between 200℃〜300℃ during tempering process of β' phase and a pearlitic decomposition at high-temperature heating of μ phase which is transformed after long time heating at lower temperature below the eutectoid temperature, are left unexplained.
社団法人日本材料学会の論文
1964-01-15