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The influence of quality of dental alloys used for cast prosthetic completions on their corrosion resistance.

Sokołowski Jerzy 2Rylska Dorota 1Klimek Leszek 1

1. Technical University of Łódź, Institute of Materials Engineering, Stefanowskiego 1/15, Łódź 90-924, Poland
2. Medical University of Łódź, Łódź, Poland

Abstract

Very often to the brand-new centrifugal casted NiCr-based alloys for prosthetic completions there are added some amounts of recasted alloys up to the 25% in weight concentration. The aim of presented paper is to compare the corrosion resistance of brand-new Ni-Cr alloys with such prepared castings. Corrosion resistance investigations were made by using the potentiodynamic polarisation method. The number of ions from the alloys passing to the artificial saliva was determined by means of X-Ray fluorescence analysis. Also the X-ray micro analysis of alloys and SEM observations were used to determine the chemical composition and structure of samples. The results show the decrease of corrosion resistance of alloys with recasted additions in comparison with brand-new Ni-Cr

 

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Presentation: poster at E-MRS Fall Meeting 2003, Symposium E, by Dorota Rylska
See On-line Journal of E-MRS Fall Meeting 2003

Submitted: 2003-05-27 17:41
Revised:   2009-06-08 12:55