What are the preventions of filiform corrosion?(a) Use of coatings with low water permeability(b) To store in low-humidity environment(c) To store in high-humidity environment(d) Use of coatings with low water permeability and to store in a low-humidity environmentThe question was posed to me in final exam.I want to ask this question from Eight Forms in portion Eight Forms of Corrosion of Corrosion Engineering

What are the preventions of filiform corrosion?(a) Use of coatings wit

1.	What are the preventions of filiform corrosion?(a) Use of coatings with low water permeability(b) To store in low-humidity environment(c) To store in high-humidity environment(d) Use of coatings with low water permeability and to store in a low-humidity environmentThe question was posed to me in final exam.I want to ask this question from Eight Forms in portion Eight Forms of Corrosion of Corrosion Engineering
Answer» The correct choice is (d) Use of coatings with low WATER permeability and to store in a low-humidity environment The best explanation: Filiform corrosion is a SPECIAL type of crevice corrosion, OCCURS under METAL coatings in a relatively high-humidity environment Preventions to filiform corrosion: i. Use of coatings with low water permeability ii. To store in a low-humidity environment iii. Use of brittle films or coatings

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