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Question

In which of the following process does mild steel absorb carbon and nitrogen to obtain a hard surface?

The correct answer is

Cyaniding

Therefore, Cyaniding is the process that fits the description of absorbing both carbon and nitrogen to achieve a hard surface layer on mild steel. The process by which mild steel absorbs both carbon and nitrogen to obtain a hard surface is known as Cyaniding.

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Important Questions from Case Hardening

  1. The aim of the tempering heat treatment is to reduce _____ while substantially reducing ______.

  2. Which is a false statement about tempering? Tempering is done to

  3. In order to gain toughness in hardened steel, the process usually adopted is:

  4. The process where the carbon from outside is introduced in the surface of steel by keeping charcoal at higher temperatures is called ________.

  5. The hardening of machine tool guideways is usually carried out by

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