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Effect of Temperature and Chloride Ion Concentration on the Electrochemical Behaviour of Stainless Steel
引用本文:李冬贵,J.P.Simpson,R.Schenk. Effect of Temperature and Chloride Ion Concentration on the Electrochemical Behaviour of Stainless Steel[J]. 材料科学技术学报, 1989, 5(3): 203-206
作者姓名:李冬贵  J.P.Simpson  R.Schenk
作者单位:Dalian Acid Proof Pump Plant China,Sulzer Bros.Ltd,Winterthur,Switzerland,Sulzer Bros.Ltd,Winterthur,Switzerland
摘    要:The effect of temperature and chlorideion concentration on the electrochemical behaviourof austenitic-ferritic duplex stainless steelCOR 25 in an aqueous solution of 60%H_3PO_4+4%H_2SO_4is studied in this paper.The experiments show that the anodic activepeak current on potentiodynamic polarizationincreases by an order of magnitude with an in-crease of temperature from 50℃ and with anincrease of chloride ion from<1 mg/1 to 1500mg/1.Compared with the other materials tested,the austenitic-ferritic duplex stainless steelshows favourable corrosion characteristics inelectrochemical tests,being comparable to thefully austenitic alloy Sanicro 28,which hasa higher chromium and nickel content,and ismuch better than GX3CrNiMo2010.Corrosion ofthe duplex material is normally phase selec-tive,with phase boundary attack after unfavour-able heat treatments.

收稿时间:1989-05-28

Effect of Temperature and Chloride Ion Concentration on the Electrochemical Behaviour of Stainless Steel
LI Donggui J.P.Simpson R.Schenk Dalian Acid Proof Pump Plant,China. Sulzer Bros.Ltd,Winterthur,Switzerland.. Effect of Temperature and Chloride Ion Concentration on the Electrochemical Behaviour of Stainless Steel[J]. Journal of Materials Science & Technology, 1989, 5(3): 203-206
Authors:LI Donggui J.P.Simpson R.Schenk Dalian Acid Proof Pump Plant  China. Sulzer Bros.Ltd  Winterthur  Switzerland.
Abstract:The effect of temperature and chloride ion concentration on the electrochemical behaviour of austenitic-ferritic duplex stainless steel COR 25 in an aqueous solution of 60%H_3PO_4+4%H_2SO_4 is studied in this paper. The experiments show that the anodic active peak current on potentiodynamic polarization increases by an order of magnitude with an in- crease of temperature from 50℃ and with an increase of chloride ion from<1 mg/1 to 1500mg/1. Compared with the other materials tested, the austenitic-ferritic duplex stainless steel shows favourable corrosion characteristics in electrochemical tests,being comparable to the fully austenitic alloy Sanicro 28,which has a higher chromium and nickel content,and is much better than GX3CrNiMo2010.Corrosion of the duplex material is normally phase selec- tive,with phase boundary attack after unfavour- able heat treatments.
Keywords:temperature  chloride  corrosion behaviour  duplex stainless steel
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