Hardness
profiles
Carbon
distribution
Residual stress
distribution
Microstructure
( 20 sec after quenching)
Bainite
Martensite
Austenite
Calculation of carburizing and quenching
compressive
tensional
930C
5h
1h
1h
850C
Steel : SCM420H
(Fe-0.21C-0.25Si-0.73Mn-0.1Ni-1.0Cr-0.25Mo)
Heat-treatment : Carburizing
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