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Friday, September 25, 2026

二元平衡相圖互動教學工具Interactive Binary Equilibrium Phase Diagrams

二元平衡相圖互動教學工具Interactive Binary Equilibrium Phase Diagrams
點選相圖任一點:相區、相組成、槓桿定律、微成分與微觀結構示意圖Click anywhere: phase region, phase compositions, lever rule, microconstituents & schematic microstructure
合金系統Alloy system
成分Composition wt%
溫度Temperature °C
 
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點擊任一點查看資訊|滾輪或雙指縮放|拖曳平移|雙擊重設Click a point for details · wheel / pinch to zoom · drag to pan · double-click to reset
微觀結構示意圖(面積比 ≈ 質量分率)Schematic microstructure (area ≈ mass fraction)
相界Lines 液相線Liquidus 固相線Solidus 固溶線Solvus 其他相界Other phase boundary 不變反應等溫線Invariant isotherm 有序化轉變Ordering
特殊點Points ★E 共晶點Eutectic ◆Ed 共析點Eutectoid ▲P 包晶點Peritectic ●C 共軛相變化點(一致熔點)Congruent melting ■Tm 熔點Melting point ◆同素異形轉變Allotropic ○最大溶解度(放大後顯示)Max. solubility (zoom in)
Fe–Fe₃C 介穩相圖;鋼 < 2.14 wt% C,鑄鐵 2.14–6.70 wt% C;A1 = 727 °C 共析線,A3、Acm 見圖。Metastable Fe–Fe₃C diagram; steels < 2.14 wt% C, cast irons 2.14–6.70 wt% C. Cu–Ni 全率固溶(同形)系統:液相線與固相線之間為 L + α。Isomorphous system: complete solid solubility (α). Cu–Ag 二元共晶系統:779 °C、71.9 wt% Ag。Binary eutectic system: 779 °C, 71.9 wt% Ag. Pb–Sn 二元共晶系統(銲錫):183 °C、61.9 wt% Sn。Binary eutectic (solder) system: 183 °C, 61.9 wt% Sn. Cu–Zn(黃銅):五個包晶反應與一個共析反應;β → β′ 有序化約 454–468 °C(示意為 460 °C)。Brass: five peritectics and one eutectoid; β → β′ ordering at ~460 °C. Mg–Pb:介金屬化合物 Mg₂Pb(81 wt% Pb)於 550 °C 一致熔化,兩側各有一個共晶。Mg₂Pb (81 wt% Pb) melts congruently at 550 °C with a eutectic on each side. Hf–V:HfV₂(36 wt% V)1550 °C 一致熔化;共晶 1455 °C / 1520 °C;βHf 共析 1190 °C;無包晶。HfV₂ melts congruently at 1550 °C; eutectics at 1455 / 1520 °C; βHf eutectoid at 1190 °C; no peritectic.

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