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Study on Dependence of Seawater Corrosivity on Environmental Factors by Grey Relational Space Analysis |
Xiangrong Zhu; |
山东青岛小麦岛海洋腐蚀所 |
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Abstract The relationships between corrosion of steel and environmental factors in sea water have been studied by grey relational analysis method. The main factors influencing localized corrosion depth of carbon steels and low alloy steels in sea water were found in accordance with grey relational grade and these dependence degree were also evaluated. The most important 3 environmental factors for marine corrosion of these steels included seawater tempenature, adhesion area of marine animals and plants and pH. Mean-while the evaluation factor for seawater corrosivity Q= (Yi×fi) was proposed. Here Yi refers to the above-mentioned 3 environmental factors , and fi is the grey relational grade of these factors to localized corrosion depth.
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Received: 24 March 1999
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Corresponding Authors:
Xiangrong Zhu
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