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Which of the following is/are the methods to control intergranular corrosion of austenitic stainless steel?

Which of the following is/are the methods to control intergranular corrosion of austenitic stainless steel? Correct Answer Employing solution-quenching, adding stabilizers and lowering the carbon content to below 0.03%

Austenitic stainless steels are highly prone to intergranular corrosion. It can be minimized by i. Employing quench-annealing or solution-quenching ii. Adding stabilizers that forms strong carbides iii. Lowering the carbon content to below 0.03%

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