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Which of the following alloying element of stainless steel that attributes a large increase in stress-corrosion resistance?

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in Corrosion Engineering by (98.5k points)
Which of the following alloying element of stainless steel that attributes a large increase in stress-corrosion resistance?

(a) Nickel

(b) Chromium

(c) Carbon

(d) Nickel and chromium

The question was posed to me in exam.

This interesting question is from Materials topic in chapter Materials of Corrosion Engineering

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The correct option is (a) Nickel

Easy explanation: Stainless steel is a generic term that attributes to the alloy system of iron-carbon-chromium and nickel. Addition of nickel as alloying element up to 10% attributes in a rapid and large increase in stress-corrosion resistance of stainless steel.

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