Question
Download Solution PDFSurface hardening is principally employed for
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The process of increasing the hardness of the surface by the process of diffusion of carbon and nitrogen in mild steels while keeping internal material stronger and ductile is known as surface hardening or Case Hardening. The following are the important processes for surface hardening:
- Case carburizing.
- Cyaniding
- Nitriding.
- Induction Hardening.
- Flame Hardening.
For iron or steel with low carbon content which has poor to no hardenability of its own, the case hardening process infuses additional carbon after the part formed its final shape.
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