ME8491 ENGINEERING METALLURGY - UNIT 2

1. ME 8491 ENGINEERING METALLURGY
M.KARTHIKEYAN
ASSISTANT PROFESSOR
DEPARTMENT OF MECHANICAL ENGINEERING
AAA COLLEGE OF ENGINEERING & TECHNOLOGY, SIVAKASI
karthikeyan@aaacet.ac.in

2. Definition – Full annealing, stress relief, recrystallisation
and spheroidising – normalising, hardening and
Tempering of steel. Isothermal transformation diagrams –
cooling curves superimposed on I.T. diagram CCR –
Hardenability, Jominy end quench test - Austempering,
martempering – case hardening, carburizing, Nitriding,
cyaniding, carbonitriding – Flame and Induction
hardening – Vacuum and Plasma hardening.
UNIT II HEAT TREATMENT

5. 1. Explain the term induction hardening.
2. Explain in detail the plasma hardening & vacuum hardening with
neat sketches.
QUESTIONS