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作者从热力学角度以电位－ｐＨ图探讨金属在福州地热水中的腐蚀趋势．本文报导铜－地热水系统，采用ＢＡＳＩＣ语言编制程序在ＡＰＰＬＥ－Ⅱ微机上计算高温热力学数据，并以ＤＸＹ－８００绘图仪绘制电位－ｐＨ图．同时，测定了铜在福州Ｇｗ２井地热水中的实际腐蚀电位．结果表明：在此地热水中，当温度低于３１８Ｋ，铜表面生成Ｃｕ２Ｏ膜，高于３１８Ｋ，生成ＣｕＯ膜，二者都位于钝化区．
The author explores the corrosion tendency of metal in geothermal water in Fuzhou from the thermodynamic point of view. This paper reports copper - geothermal water system, using BASIC programming language to calculate high temperature thermodynamic data on the APPLE-Ⅱ microcomputer, and draw the potential-pH diagram with the DXY-800 plotter. At the same time, the actual corrosion potential of copper in geothermal water of Well Fuzhou Gw2 was measured. The results show that when the temperature is lower than 318K in this hot water, the Cu2O film is formed on the copper surface, which is higher than 318K and the CuO film is formed, both of which are located in the passivation zone.