Microstructural study of the resistance to corrosion of laser welded AuPd alloy joints for prosthesis supported by implants
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Editora Unesp
Type
Article
Access right
Abstract
In this work, welded Au alloy joints, used for prosthesis supported by implants, have been studied before and after to laser welding processes. A refined dendritic microstructure was observed in the welding area. The base metal exhibited a two-phase granular microstructure with larger hardness and the appearance of Au precipitate. The electrochemical experiments, in NaCl 0.15 mol.L-1 solution at room temperature, which are appropriate to simulate corrosion at oral environment conditions, showed that the joint has a better performance when compared to base metal; probably due to the metallurgical structure in the region.
Description
Keywords
laser welding, dental alloys, prosthesis supported by implants, Au alloy corrosion
Language
Spanish
Citation
Ecletica Quimica. Sao Paulo: Editora Unesp, v. 27, p. 185-199, 2002.
