Limitations and Recommendations for the Measurement of Residual Stresses in Welded Joints

Limitations and Recommendations for the Measurement of Residual Stresses in Welded Joints

T.N. Nitschke-Pagel

Abstract. Residual stresses in welded joints are often of extended interest in order to evaluate unexpected failures or distortions. Since the possibilities to calculate residual stresses in welds are still stronglyl limited the measurement techniques are still of great importance. Several measurement techniques with particular possibilities and limitations are available today where especially the different diffraction methods are used mostly. Material. weld type and the size of the components are important for the quality of the results obtained with different methods as well as the environment where the measurements have to be carried out. The paper shall give an overview of the results of a round robin test on the application of XRD on butt welded joints which has been carried out in cooperation of different experienced laboratories. The results show the high reliability of XRD-measurements in welds, if the measurements are performed under well defined boundary conditions. The experiences can be used as a recommendation about useful measurement conditions the expectable quality of the results.

Keywords
Residual Stresses, Welding Joints, X-Ray Diffraction

Published online 9/11/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: T.N. Nitschke-Pagel, ‘Limitations and Recommendations for the Measurement of Residual Stresses in Welded Joints’, Materials Research Proceedings, Vol. 6, pp 221-226, 2018

DOI: https://dx.doi.org/10.21741/9781945291890-35

The article was published as article 35 of the book Residual Stresses 2018

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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