We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
MECHANICAL PROPERTIES AND MICROSTRUCTURE CHARACTERISATION OF Au-Pt DENTAL ALLOY.
- Authors
Rudolf, R.; Hartner, T. Zupančič; Kosec, L.; Todorović, A.; Kosec, B.; Anžel, I.
- Abstract
Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (In, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: α1-phase rich in Au (main phase) and α2-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the α1-phase content is about 98,5 wt.% while the content of α2-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K.
- Subjects
DENTAL metallurgy; SURFACE analysis; MICROSTRUCTURE; MECHANICAL properties of metals; HEAT treatment of metals; GOLD; PLATINUM; ZINC alloys; METALLURGY
- Publication
Metalurgija, 2008, Vol 47, Issue 4, p317
- ISSN
0543-5846
- Publication type
Article