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Which of the following metal/alloy has the highest stress-corrosion resistance?

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in Corrosion Engineering by (98.5k points)
Which of the following metal/alloy has the highest stress-corrosion resistance?

(a) Aluminum

(b) Inconel

(c) Stainless steel

(d) Titanium

I got this question during an online interview.

Question is taken from Materials in section Materials of Corrosion Engineering

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Best 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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