Effect of gallium on the corrosion susceptibility of an odontological Ni-Cr alloy


  • O. Riesgo Fundación para el Estudio de los Materiales Dentales
  • S. M. Vázquez Laboratorio de Sólidos Amorfos. Dpto. de Física. Facultad de Ingeniería. Universidad de Buenos Aires
  • G. S. Duffó Comisión Nacional de Energía Atómica. Gerencia Centro Atómico Constituyentes. Unidad de Actividad Materiales




Ni-Cr alloys, Ni-Cr-Ga alloys, Odontological alloys, Corrosion susceptiblity


Due to the high price of gold and its alloys, alternative alloys of non noble metals have been developed for use in fixed dental prosthesis. These are Ni-Cr and Co-Cr alloys. Usually fixed prosthesis are joined and then covered with a ceramic layer and for this purpose good castability and adherence with ceramics are required. The castability of Ni-Cr alloys is good and so is their adherence to the ceramic layer. However, a new Ni-Cr alloy with addition of gallium has been produced. In the present work the corrosion properties of a Ni-Cr-Ga alloy in oral environments are analyzed. The results show that the addition of gallium to a Ni-Cr alloy does not produce a modification on the corrosion properties of Ni-Cr alloys.


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How to Cite

Riesgo, O., Vázquez, S. M., & Duffó, G. S. (1996). Effect of gallium on the corrosion susceptibility of an odontological Ni-Cr alloy. Revista De Metalurgia, 32(5), 310–313. https://doi.org/10.3989/revmetalm.1996.v32.i5.896




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