Transcription of Bimetallic Corrosion
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BimetallicCorrosionGuides to Good Practice in Corrosion ControlThe National Physical Laboratory is operated on behalf of the DTI by NPL Management Limited, a wholly owned subsidiary of Serco Group plcContents necessary for3bimetallic that effect3the rate of and flow condition 8and Corrosion 8without physical Corrosion in some9common and embedded and and gas process of information15 BimetallicCorrosionThis is an update of a DTI publication first issued in 1982. The new versionhas been prepared by Dr. R. Francis of Weir Materials and Foundriesunder contract from NPL for the Department of Trade and purpose of this guide is to provide general informationabout Bimetallic Corrosion . More detailed information can beobtained from British Standards Institution PublishedDocument PD6484: 1979 (1). Further advice on specificissues can be obtained from the organisations listed at theend of this a metal is immersed in a conducting liquid it takes upan electrode potential (also known as the Corrosion potential).
Contents page 1.0 Introduction 1 2.0 Conditions necessary for 3 bimetallic corrosion 3.0 Factors that effect 3 the rate of corrosion 3.1 Electrode potential 3 3.2 Electrode efficiency 5 3.3 Variable potential 5 3.4 Electrolyte 5 3.5 Area ratio 6 3.6 Aeration and flow rate 7 …
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