Conditions Leading to Quench Cracking
Other Than Severity of Quench

CASE HISTORIES


Grinding Cracks

Micrograph of induction hardened AISI G-3500 gray iron 
illustrating retained austenite at the lobe tip. 
(Magnification 200X, 3% Nital)

Micrograph of induction hardened AISI G-3500 gray 
iron illustrating crack propagation into the induction 
hardened case. (Magnification 100X, 3% Nital)

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Alloy Inclusion Defects  |  Table of Contents