MECHANICAL PROPERTIES AND PHASE ANALYSIS EXPLOSIVELY WELDED TI-CR/NI STEEL IN AS-RECEIVED STATE AND AFTER HEAT TREATMENT

1 OSTROUSHKO Dmytro
Co-authors:
1 MAZANCOVA Eva 2 SAKSL Karol 3 Milkovič Ondrej
Institutions:
1 SB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Ostrava, Czech Republic, EU, dimitrij.o@seznam.cz, emazancova@vsb.cz
2 ÚMV-SAV, Kosice, Slovak Republic, EU, ksaksl@imr.saske.sk
3 Technical University Košice, Kosice, Slovak Repulic, EU, ondrej.milkovic@tuke.sk
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
569-574
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
313 views / 152 downloads
Abstract

Surface coatings protection is one of the most important processes ensuring efficient and economic use of basic materials, mostly of lower-quality. At interface of clad and basic material intermetallic phases are formed, representing quite different matrix with dissimilar properties unlike the welded materials. One type of surface coating is explosive bonding which belongs to group of pressure welding. The work is focused on some mechanical properties, micro-hardness in-homogeneities in vicinity of the wave joint both in the basic material and nearby of the Ti and Cr/Ni stainless steel matrix weld line. Investigated weld was both in as-received state and after heat treatment carried out at 600°C/90 minutes/air. The TEM investigation includes a dislocation density and structures in both samples. Phase has been identified by X-ray diffraction performed by synchrotron radiation, and Ti, Fe-fcc, Fe-bcc and Fe2Ti intermetallic phases were detected at interface area.

Keywords: Ti-Cr/Ni, explosive bonding, interface area, heat treatment, hardness, phase analysis

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