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Question 13

Nickel based alloys usually contain ________ nickel.

    Correct Answer: A

    Nickel-based alloys typically contain a high percentage of nickel, generally defined as alloys containing 30% or more nickel. This high nickel content imparts desirable properties such as corrosion resistance, high-temperature strength, and toughness, which are essential for various industrial applications.

Discussion
ahmadmm

Cracking can occur because the coefficients of thermal expansion of ferritic materials (e.g. steels) and austenitic materials (e.g. 300 series SS and nickel-based alloys) differ by about 25 % to 30 %.