【摘 要】
：
Atri-polyphosphate was used as a corrosion inhibitor in the seawater prepared coral concrete,and its influence on the corrosion behavior of carbon steel,304 austenitic stainless steel,and 2205 duplex stainless steel was studied by the open-circuit potenti
【机 构】
：
Jiangsu Key Laboratory of Coast Ocean Resources Development and Environment Security, Hohai Universi
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
Atri-polyphosphate was used as a corrosion inhibitor in the seawater prepared coral concrete,and its influence on the corrosion behavior of carbon steel,304 austenitic stainless steel,and 2205 duplex stainless steel was studied by the open-circuit potential,electrochemical impedance spectroscopy,and potentiodynamic polarization,respectively.The results reveal that the corrosion potential and impedance of the reinforcing steel increase,while the corrosion current density decreases with the content of aluminum tripolyphosphate in the coral concrete.A low content of the corrosion inhibitor significantly retards the corrosion of the two stainless steels,but it cannot effectively inhibit the corrosion of the carbon steel in the coral concrete.In general,the carbon steel is unsuitable for the coral concrete for its poor corrosion resistance.In contrast,the stainless steels,especially the 2205 duplex stainless steel,shows an excellent anti-corrosion property in the seawater prepared coral concrete containing a certain amount of inhibitor,which is one of the satisfactory candidate methods to build the long-life coral concrete constructions.
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