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Residual stress measurement in AlSi alloys
Author(s) -
Reisgen U.,
Sharma R.,
Gach S.,
Olschok S.,
Francis J.,
Bobzin K.,
Oete M.,
Wiesner S.,
Knoch M.,
Schmidt A.
Publication year - 2017
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201700157
Subject(s) - residual stress , tempering , materials science , diffraction , hole drilling method , alloy , stress (linguistics) , metallurgy , composite material , optics , physics , linguistics , philosophy
In this work, the relaxation of residual stresses inside a sample made of the aluminum alloy AlSi7Mg0.3 after tempering is described. The comparison of stress evaluation by X‐ray diffraction and incremental hole drilling method combined with electronic speckle pattern interferometry strain determination gives the opportunity to evaluate micro stresses together with first order macro stresses. Compressive stresses within the surface of a cold worked sample are relaxed by tempering. The X‐ray diffraction evaluation is supported by the analysis of a stress‐free sample through incremental hole drilling method.