What Is Case Hardening
Case hardening is a technique in which the metal surface is reinforced…
Martempering/Marquenching
Marquenching/Martempering is a form of heat treatment applied as an interrupted quench…
Austempering
Austempering is a heat treating process for medium-to-high carbon ferrous metals which…
Continuous Cooling Transformation Diagrams
In the last column, we discussed the construction and application of Time…
I-T Diagram and Cooling Curves
Phase Diagrams are limited in their usefulness because they can only predict…
MARTEMPERING AND AUSTEMPERING
It will be readily appreciated that the quenching operation used in hardening…
TEMPERING
Tempering is essential after most hardening operations to restore some toughness to…
ANNEALING
Annealing is a heat treatment procedure involving heating the alloy and holding…
BASIC PRINCIPLES OF HEAT TREATMENT
Heat treatment of a metal or alloy is a technological procedure, including…


