銅珪素アルミニウム合金の平衡状態圖(II)

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概要

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• The constituent of the whole ternary system copper-aluminium-silicon were considered. No ternary intermetallic compound is observed and 15 definite constituents which have, been determined in each binary system were also found to occur in this ternary system. There exist 11 surfaces of the primary separation, and 8 invariant points on the liquidus surface; among them 2 points are ternary eutectic, 1 point ternary peritectie, and 5 points peritecto-eutectic. Both the β phases of the Cu-Si and Cu-Al system are completely soluble in all proportions in the ternary system, and it decomposes into α+γt; the univariant reaction line of this decomposition has a minimum point at about 500℃. 2 invariant reactions in solid state, γt+γs⇄X+α, γt+X⇄α+εs", are found to exlst at 675° and 495℃. Five invariant reactions; γt+ε_2a⇄δ+Si, ε_2a⇄δ+ξ_1+S_1, ξ_1-⇄δ+ξ_2+Si, ε_2a+η_1⇄ξ_1+Si, ξ_1+η_1⇄ξ_2+Si and two ternary polymorphic changes due to the η_1⇄η_2 phases, take place almost the same temperatures as in the binary Cu-Al system. Four ternary polymorphic changes due to the εs⇄εs' and εs'⇄εs" take place at 600°γ_5+ε⇄=S_s'+X, 550°γt+εs'⇄εs"+X, 585°γt+ε⇄εs'+Si, and 525°γt+εs'⇄εs''+Si respectively. The limit of solubility of silicon and aluminium in Solid copper has been also determined.

• 社団法人日本鉄鋼協会の論文
• 1936-08-25

著者

• 久恒 中陽

  京都帝大工學部採鑛治金學教室

関連論文

• 銅珪素アルミニウム合金の平衡状態圖(II)
• 銅、珪素、アルミニウム合金の平衡状態圖 : 第一編、各二元系合金の状態圖
• 12) 銅、アルミニウム、珪素三元系合金の平衡状態圖に就て(日本鐵鋼協會第拾參囘講演大會(滿洲冶金學會聯合))

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