CHEMICAL AND STRUCTURAL HETEROGENEITIES IN TIG DISSIMILAR WELDED JOINTS OF FERRITIC STAINLESS STEELS AND MAGNESIUM ALLOYS WITH CU INTERLAYER

1 Simon Natanael
Co-authors:
2 Karancsi Olimpiu 1 Mitelea Ion 1 Crăciunescu Corneliu Marius
Institutions:
1 University Politehnica Timişoara, no. 2 P-ta Victoriei, Timişoara, Romania, EU, natanael.simon@upt.ro, ion.mitelea@upt.ro, corneliu.craciunescu@upt.ro
2 Victor Babes University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., Timişoara, Romania, karancsi.olimpiu@umft.ro
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
1690-1694
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
42 views / 12 downloads
Abstract

The TIG welding process is well known for its advantages and exclusivity when it comes to weld materials such as Titanium, Magnesium, Aluminium, etc. which requires special conditions, therefore in this experiment we use TIG welding procedure to join two materials to two different base materials: Cu-(FM) on ferritic stainless steel-(BM); Mg-(FM) on Copper-(BM). In this paper are analysed intermetallic compounds and constituents formed in different zones of welded sample: HAZ of base material, fusion line, fusion zone, etc. To produce qualitative, braze-welded joints between dissimilar materials, we need to fully understand and take in consideration different factors. Obtained results are evaluated by optical microscopy, scanning electron microscopy and EDX-analyses.

Keywords: TIG welding, magnesium, ferritic stainless steel, intermetallic compounds, constituents
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