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The reason for the noble nature of titanium is that it cathodically polarizes readily in seawater.

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The reason for the noble nature of titanium is that it cathodically polarizes readily in seawater.

(a) False

(b) True

This question was posed to me in exam.

This interesting question is from Eight Forms in division Eight Forms of Corrosion of Corrosion Engineering

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Right option is (b) True

To explain I would say: Titanium is one of the noble metals in the galvanic series and the reason is that it cathodically polarizes readily in seawater. It replaces many materials as best corrosive resistant metal in the seawater applications and high-velocity corrosive solutions.

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