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AN ALUMINIUM BASED SACRIFICIAL ANODE FOR CATHODIC PROTECTION OF IRON AND HIGH STRENGTH STEELS
AN ALUMINIUM BASED SACRIFICIAL ANODE FOR CATHODIC PROTECTION OF IRON AND HIGH STRENGTH STEELS
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机译：基于铝的牺牲阳极，用于铁和高强度钢的阴极保护
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摘要
The present invention provides aluminium based sacrificial anodes for cathodic protection of iron and high strength steels. More particularly, it relates to low voltage sacrificial aluminium anodes with manganese, zinc and silicon as alloying elements for achieving desired operating potential and for satisfactory aluminum dissolution. The sacrificial anodes are suitable for cathodic protection of high strength steels, which are susceptible to hydrogen embrittlement. The sacrificial anode with low driving potential is particularly useful for cathodic protection of high strength steels and the complex structure in marine environment. These steels are susceptible to Stress Corrosion Cracking (SCC) and Hydrogen Embrittlement (HE) at high negative working potentials attained by conventional sacrificial anode materials, such as Zn and in activated aluminium alloys.
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