Microscopic and Mechanical Characterization of Co-Cr Dental Alloys Joined by the TIG Welding Process

Carek, Andreja; Slokar Benić, Ljerka; Bubalo, Vatroslav; Kosović, Nika

doi:10.3390/ma16103890

Pregled bibliografske jedinice broj: 1275009

Microscopic and Mechanical Characterization of Co-Cr Dental Alloys Joined by the TIG Welding Process

Carek, Andreja; Slokar Benić, Ljerka; Bubalo, Vatroslav; Kosović, Nika

Microscopic and Mechanical Characterization of Co-Cr Dental Alloys Joined by the TIG Welding Process // Materials, 16 (2023), 3890, 17 doi:10.3390/ma16103890 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1275009 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Microscopic and Mechanical Characterization of Co-Cr Dental Alloys Joined by the TIG Welding Process

Autori
Carek, Andreja ; Slokar Benić, Ljerka ; Bubalo, Vatroslav ; Kosović, Nika

Izvornik
Materials (1996-1944) 16 (2023); 3890, 17

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
microstructure ; mechanical properties ; cobalt-chromium dental alloys ; microhardness ; flexural strength ; dynamic testing ; TIG welding

Sažetak
Due to their good mechanical and other properties, cobalt-chromium alloys (Co-Cr) are often used in prosthetic therapy. The metal structures of prosthetic works can be damaged and break, and depending on the extent of the damage, they can be re-joined. Tungsten inert gas welding (TIG) produces a high-quality weld with a composition very close to that of the base material. Therefore, in this work, six commercially available Co-Cr dental alloys were joined by TIG welding, and their mechanical properties were evaluated to determine the quality of the TIG process as a technology for joining metallic dental materials and the suitability of the Co-Cr alloys used for TIG welding. Microscopic observations were made for this purpose. Microhardness was measured using the Vickers method. The flexural strength was determined on a mechanical testing machine. The dynamic tests were carried out on a universal testing machine. The mechanical properties were determined for welded and non-welded specimens, and the results were statistically evaluated. The results show the correlation between the investigated mechanical properties and the process TIG. Indeed, characteristics of the welds have an effect on the measured properties. Considering all the results obtained, the TIG—welded I—BOND NF and Wisil M alloys showed the cleanest and most uniform weld and, accordingly, satisfactory mechanical properties, highlighting that they withstood the maximum number of cycles under dynamic load.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija, Dentalna medicina

POVEZANOST RADA

Ustanove:
Stomatološki fakultet, Zagreb,
Metalurški fakultet, Sisak,
Klinička bolnica "Dubrava"

Profili:

Ljerka Slokar Benić (autor)