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Logo: IFW - Institut für Fertigungstechnik und Werkzeugmaschinen
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Logo: IFW - Institut für Fertigungstechnik und Werkzeugmaschinen
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Breidenstein, B., Denkena, B., Mörke, T., Prasanthan, V.:

Titel:Non-Destructive Determination of Residual Stress Depth Profiles of Hybrid Components by Energy Dispersive Residual Stress Measurement
Jahr:2017
Stichworte:residual stress, energy dispersive, angle dispersive, hybrid components, nondestructive measurement, depth profiles
Kategorie:Zeitschriften/Aufsätze (reviewed)
DOI:10.4028/www.scientific.net/KEM.742.613

Abstract

Through the combination of two or more materials to one compound, for example highstrength
steel and aluminum, hybrid massive components can be manufactured, whose properties
are specially adapted to the respective application. One of the challenges is the joining zone which
is influenced by machining induced residual stresses. In order to examine the residual stress
modifications by the machining process and in addition to analyze the influence of these residual
stress gradients on the lifespan of hybrid components a non-destructive method of measuring depthresolved
residual stress is necessary. Therefore, an innovative energy dispersive X-ray measurement
technique is used in the collaborative research center 1153 (CRC 1153). In this study the suitability
of the method is examined by comparing the results with the angle dispersive method both in
machined front surface of mono materials and hybrid shafts. A parametrical study shows the
possibility to get greater depth information by variation of the measuring parameters Bragg angle,
tilting angle, collimator and current. In addition, the results of the energy dispersive method
combined with electrolytic removal is shown. Based on these results the evaluation of the reliability
and reproducibility of energy dispersive residual stress measurements is completed.