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Ultrasonic Measurement of Hardening Depth

 
: Reddy, K.M.; Theiner, W.; Wolf, H.

Indian Society for Non-Destructive Testing:
National Seminar on Nondestructive Evaluation for Life Extension 1997. Souvenir
Hyderabad: Indian Society for Non-Destructive Testing, 1997
pp.1-3
National Seminar on Nondestructive Evaluation for Life Extension <1997, Hyderabad>
English
Conference Paper
Fraunhofer IZFP ()
hardening depth; ultrasonic testing

Abstract
Induction and flame hardening are standard heat treatment procedures for generating hard cases in steels, typically thicker than 1 mm. Examples are crank shafts for diesel engines or rollers used in mills. The standard technique to determine case depth is to destroy one component from a batch and metallographically study the cross section. This procedure is expensive and obviously does not assure complete coverage.

: http://publica.fraunhofer.de/documents/PX-37436.html