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 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.
5) To reduce internal stresses of a hardened tool, the method of heat treatment generally applied is
Tempering
The tempering process consists of heating the hardened steel to the appropriate tempering temperature and soaking at this temperature, for a definite period.
Tempering
The tempering process consists of heating the hardened steel to the appropriate tempering temperature and soaking at this temperature, for a definite period.
Nitriding
In the nitriding process, the surface is enriched not with carbon, but with nitrogen. There are two systems in common use, gas nitriding and salt bath nitriding.