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THE INFLUENCE OF HEAT TREATMENTS ON THE MECHANICAL PROPERTIES OF RESISTANCE SPOT WELDED JOINTS FROM NIMONIC 80 A ALLOYS

1 BURCĂ Lucian
Co-authors:
1 MITELEA Ion 1 BURCĂ Mircea 1 UŢU Ion-Dragos 1 CRĂCIUNESCU Corneliu Marius
Institution:
1 University Politehnica Timisoara, Pta Victoriei, Timisoara, Romania, EU, lucian.burca@studen.upt.ro, ion.mitelea@upt.ro, dragos.utu@upt.ro, cornliu.craciunescu@upt.ro
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
502-507
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4134
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
321 views / 336 downloads
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Abstract

The resistance spot welding of the Nimonic alloys is a critical technology by manufacturing of components used for nuclear and aeronautical industry, as well as for the chemical and the petro-chemical domain. The mechanical properties and the corrosion resistance can be affected by the heat - mechanical shock caused by the welding cycle. The present paper reveals the positive effect of the heat treatment, applied before and after welding process, on the mechanical properties of the welded joints. Destructive tensile tests, shearing stress measurements and metallographic investigations were performed to evaluate the quality of the welded joints.

Keywords: Heat treatment, Nimonic 80 A alloy, mechanical tests, resistance spot welding

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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