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Which of the following metal/alloy has the highest stress-corrosion resistance?(a) Aluminum(b) Inconel(c) Stainless steel(d) TitaniumI got this question during an online interview.Question is taken from Materials in section Materials of Corrosion Engineering

Answer»

The CORRECT answer is (b) Inconel

Best explanation: Typical composition of an Inconel is chromium 20-23%, IRON 5%, molybdenum 8-10% and nickel around 60-65%. Inconel has the highest stress-corrosion RESISTANCE whereas ALUMINUM, stainless steel, and titanium are prone to stress corrosion CRACKING.



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