The phase equilibrium relations in Fe-H_2O system were discussed and potential-pH diagrams for Fe-H_2O system at 25 ℃ constructed through the principle of simultaneous equilibrium.

運(yùn)用同時(shí)平衡原理,討論了Fe-H2O系中的相平衡關(guān)系,繪制了25℃時(shí)Fe-H2O系的電勢(shì)-pH圖。

The potential-pH diagrams will be of avail for studying the corrosion.

根據(jù)化學(xué)勢(shì)繪制了室溫下在55%LiBr溶液中Cu-Br--H2O體系的銅的電勢(shì)-pH圖和腐蝕-免蝕-鈍化條件圖。