A New Dental Superalloy System: III. Microstructure and Phase Transformations
- 1 January 1973
- journal article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 52 (1) , 151-156
- https://doi.org/10.1177/00220345730520010901
Abstract
A microstructural study was conducted on 15 cobalt-chromium-nickel alloys of the basic composition 40 Co-30 Ni-30 Cr. The alloys were strengthened by the addition of tantalum and tantalum-rich regions were found at the interdendritic spaces. The increase in Ta concentration caused a decrease in the concentration of the β phase and an increase in the amounts of the a phase. Excessive amounts of Ta resulted in formation of the σ phase. The failure of the alloy occurred as a result of the interconnection of σ regions.Keywords
This publication has 2 references indexed in Scilit:
- A New Dental Superalloy System: II. Mechanical PropertiesJournal of Dental Research, 1973
- A New Dental Superalloy System: I. Theory and Alloy DesignJournal of Dental Research, 1973