It was suddenly cooled in brine in heat treatment, this is the main reason for the component to crack after heat treatment.
3) A given component cracked after heat treatment. What can be the possible reason ?
It was suddenly cooled in brine
Related Heat Treatment MCQ - Machinist(Set-1) with Answers
Low-carbon steel parts
Case-hardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal (called the "case") at the surface.
Normally Low carbon steel parts are subjected to case hardening process.