Structural Stability of Composite Materials Prepared by Explosion Welding after their Heat Treatment

Abstract:

As is well known, the explosion welding is considered for a specific type of cold pressure welding. Welded joints fabricated by this technology show a typical undulated boundary, which characterises both, the welding process and bond quality. This technology allows to weld a relatively wide assortment of combinations of various metals and their alloys [1,2]. This contribution presents the technological procedure for preparation of composite materials based on three metals (trimetals) by use of industrial explosive Semtex S. It concerns the trimetals as structural carbon steel-Cu-Al and structural carbon steel-Ti-Al. For the anodes and cathodes of electrolysers, used for manufacture of aluminium, mostly bimetals were used up to now, as for example the structural carbon steel – Al. However, the mentioned trimetals exert certain priorities over bimetals, regarding mainly the structural stability at elevated temperatures. This also results in higher reliability at breakdown situations and also in longer life of weldments proper. The mentioned trimetals were prepared at Explosia Inc., Research Institute of Industrial Chemistry Pardubice-Semtín. The bond quality was assessed by optical microscopy, microhardness measurement across the bond boundary and also by X-ray microanalysis.

• Periodical: Defect and Diffusion Forum (Volumes 297-301)
• Pages: 1171-1176
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.297-301.1171
• Online since: April 2010
• Authors: Martin Tršo, Michal Benák, Milan Turňa, Peter Nesvadba
• Keywords: Bond Quality, Explosion Welding, Heat Treatment, Microhardness, Optical Microscopy, Trimetals, X-Ray Microanalysis

References

[1] M. Turňa: Special Welding Methods. pp.116-159, Alfa (1989) Bratislava.

[2] AWS Welding Handbook, Welding Processes, Part 2, 9th Edition, Vol. 3, (2007). ISBN 978-0-87171-053-6.

[3] P. Nesvadba: Explosive Welding for Preparation of Multilayer Materials, in Shock-Assisted Synthesis and Modification of Materials, (2006).

[4] V.I. Lysak, S.V. Kuzmin: in: Welding and Allied Processes, edited by B.E. Paton, Explosion Welding of Metal Layered Composite Materials, Welding Institute of NASU (2003) Ukraine.

DOI: 10.37434/tpwj2020.04.02

[5] Marônek, Milan: Zváranie kovových materiálov výbuchom. Explosion Welding of Metals. Bratislava: STU Publisher, 2009, in press.

[6] M. Marônek, Ľ. Čaplovič, In: Annals of DAAAM and Proceedings of DAAASymposium. ISSN 1726-9679. Vol. 19, No. 1. Trnava-Vienna (2008), pp.0811-0812. Al Fe Figure13. Area distribution of elements (Fe- blue, Al- red).