Influence of joining methods on microstructure and properties of dental materials (CROSBI ID 522224)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Carek, Andreja ; Živko-Babić, Jasenka ; Schauperl, Zdravko ; Jakovac, Marko
engleski
Influence of joining methods on microstructure and properties of dental materials
The reconstructive disciplines are faced with an increasing number of different functional, aesthetic and prophylaxis criteria that must be satisfied. Therefore, numerous technical materials of different composition and properties are currently being used. Due to some technological failures or combining prosthetic reconstructions there is a need for joining together parts of metallic construction either of same composition or those of different compositions. For this purpose different technologies and different conditions are used. The aim of this study was the analysis of microstructure and microhardness of the soldered or welded joints. The analysis involved two Ni-Cr and two Co-Cr alloys. Samples (25 x 10 x 1.5 mm) were cast. Two halves of each sample were joined by soldering, laser welding and electric arc welding (TIG). Joining was performed either by adding materials or without additions. The quality of joints and heat affected zone was examined with optical microscopy and SEM. Microstructure was qualitatively and quantitatively analyzed with a special regard to porosity. Microhardness was measured by Vickers method. Soldering gives the best results. Welding is advantageous if all the procedures are performed properly. Otherwise, there are lot of cold cracks.
dental alloys; microstructure; soldering; laser welding; TIG
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Podaci o prilogu
2006.
objavljeno
Podaci o matičnoj publikaciji
11. savjetovanje o materijalima, tehnologijama, trenju i trošenju (MATRIB 2006) : zbornik radova
Grilec, Krešimir
Zagreb: Hrvatsko društvo za materijale i tribologiju (HDMT)
953-7040-10-0
Podaci o skupu
Savjetovanje o materijalima, tehnologijama, trenju i trošenju (11 ; 2006)
predavanje
22.06.2006-24.06.2006
Vela Luka, Hrvatska