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A Comparative Study on Infrared Thermography during Ultrasonic Fatigue Testing of Cast Steel 42CrMo4 and Cast Aluminium Alloy AlSi7Mg

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Abstract:

The present paper illustrates a comparison of infrared thermography during ultrasonic fatigue testing of cast steel 42CrMo4 and cast aluminium alloy AlSi7Mg. Against the background of different material properties (e.g. mechanical properties as well as thermal properties) the benefit of this non-destructive material testing method in terms of determining the crack initiation point and time during fatigue testing as well as crack propagation is evaluated and discussed. Moreover, correlations between fractography and infrared thermography are performed for both materials.

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Info:

Periodical:

Key Engineering Materials (Volumes 592-593)

Pages:

501-504

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.592-593.501

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Online since:

November 2013

Authors:

Dominik Krewerth*, Anja Weidner, Horst Biermann

Keywords:

42CrMo4, AlSi7Mg, Fractography, Thermography, Ultrasonic Fatigue

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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