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Electorchemical corrosion is corrosion that is sped up due to electron movement, within the chemicals.

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Define different type of corrosion and explain electrochemical theory of corrosion.how will you protect corrosion?

Types of corrosion 1. Induced corrosion due to chloride 2. Pitting 3. Corrosion due to Oxidation 4.Corrosion is due to dissimilar materials 5. Corrosion due to imbalanced electrovalency In Electro-chemical theory,when two materials of different potential are in contact with each other through electrolyte, the two materials become, one is cathode and the other anode. The ions(electrons ) passes from anode deposited on cathode. Protection methods: 1.Metallurgical method 2.Corrosion inhibitors 3 Coatings like paintings, epoxy application etc 4. Cathodic protection 5 Galvanisation 6 Balancing of of electrovalency of materials or reducing impurity 7 use of sacrificial anode


Define corrosion?

Corrosion is a natural process, which converts a refined metal to a more stable form, such as its oxide, hydroxide, or sulfide.


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i don't think there is another name for "corrosion", i mean there are different ways to define "corrosion". you can call it oxydation but is not the exact definition since is just a part of the process "corrosion". http://www.corrosionist.com/Corrosion_Fundamental.htm


Define ratings of copper corrosion test 1A and 1B?

In standardized test method ASTM D130 for oils or D4048 for grease, the rating of 1A is given for appearance of freshly polished copper coupons, and 1B indicates slight tarnish. The ratings proceed further down the scale as corrosion staining of the test coupon increases, with 4 being the worst (severe corrosion) typically appearing as a blackened test coupon.


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