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The treatment of steel to get a stronger casing while maintaining a soft core is called _________

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The treatment of steel to get a stronger casing while maintaining a soft core is called _________

(a) Surface hardening

(b) Tempering

(c) Sintering

(d) Surface lining

This question was addressed to me by my college professor while I was bunking the class.

This interesting question is from Carburizing in division Heat Treatment of Engineering Material & Metallurgy

1 Answer

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Best answer
Right choice is (a) Surface hardening

Explanation: In many applications, it is required for the surface to be harder while the core of the material remains soft. The treatment of steels to achieve this is known as surface heat treatment or surface hardening.

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