EVALUATION OF RESIDUAL STRAINS AND STRESSES USING TWO-DIMENSIONAL X-RAY DIFRACTION

1,2 SAKSL Karel
Co-authors:
3 SZULC Zygmunt 4 Gloc Michał 1 MILKOVIČ Ondrej 5 ĎURIŠIN Juraj 4 Ciupiński Łukasz 6 Arnbjörnsson Adalsteinn 7 OSTROUSHKO Dmytro 7 MAZANCOVÁ Eva 8 Bertram Florian
Institutions:
1 Slovak Academy of Sciences, Institute of Materials Research, Watsonova 47, 040 01 Košice, Slovak Republic, EU, ksaksl@saske.sk, ondrej.milkovic@tuke.sk
2 Faculty of Sciences, Pavol Jozef Šafárik University in Košice, Košice 041 80, Slovak republic, EU
3 Explomet – Opole (High-Energy Techniques Works), Opole, Poland, EU, zygmunt.szulc@explomet.pl
4 Warsaw University of Technology, University Research Centre “Functional Materials”, 141 Wołoska Street, Warsaw 02-507, Poland, EU, michalgloc@poczta.fm, lciupinski@gmail.com
5 Technical University of Košice, Faculty of Electrical Engineering and Informatics, Letná 9, 042 00 Košice, Slovak Republic, EU, juraj.durisin@tuke.sk
6 Innovation Center Iceland, Materials, Biotechnology and Energy, Árleyni 8, 112 Reykjavík, Iceland, ada@nmi.is
7 Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17. listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic, EU, dimitrij.o@seznam.cz, eva.mazancova@vsb.cz
8 DESY Photon Science, Notkestr. 85, D-22607 Hamburg, Germany, EU, florian.bertram@desy.de
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
29-34
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
62 views / 30 downloads
Abstract

Residual stresses exist in material independently of the presence of any external loads. Their presence may not be readily apparent and so they may be overlooked or ignored during a process of engineering design. This however can cause great design risk because they can have profound impact on material strength, dimensional stability and fatigue life. Almost all manufacturing processes create residual stresses that can further develop during service life of the manufactured component. Several comparative, qualitative and quantitative methods for stress analysis are nowadays applied in engineering praxis. Among them X-ray diffraction is one of the most used and developed over the past 90 years. In this article we describe novel concept of two-dimensional X-ray diffraction (XRD2) and we demonstrate its applicability on determination of residual strains and stresses in a bimetallic austenite/ferrite steel system. Our analysis is based on X-ray micro-diffraction experimental utilizing hard monochromatic X-rays focused down to micrometer size. In this way bimetal in bulk form was analyzed and microstructural differences between the joined materials and their interface were determined.

Keywords: X-ray diffraction, XRD2, explosive welding, bimetal
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