Mechanical Characteristics of Boron and Cerium Added NiCrMo Non-Precious Dental Casting Alloys

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  • Haider Ali
    School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST)
  • Jaffery Syed Husain Imran
    School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST)
  • Khan Aamir Nusair
    Ibn-e-Sina Institute of Technology
  • Ulqadir Najam
    School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST)
  • Jing Xiubing
    School of Mechanical Engineering, Tianjin University

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Abstract

<p>Nickel–Chromium–Molybdenum (Ni–Cr–Mo) alloys are widely used for dental applications. This research was aimed to investigate improvement in the mechanical properties of Ni–Cr–Mo alloy through Boron and Cerium doping. These alloys were doped with boron and boron+cerium alloying elements. The mechanical testing of the samples revealed that minor addition of these alloying elements significantly improved the ultimate tensile strength and yield strength. Moreover, the melting points of the doped samples, determined by differential thermal analysis, decreased appreciably with doping elements. Furthermore, detailed wear testing was carried out to analyze the in-situ behavior of the alloys. Significant improvement in wear rate was noted for the boron and boron+cerium added alloy samples. Also biocompatibility for the three alloys in cytotoxicity test proved the suitability for the use of these alloys in dental prostheses.</p>

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 64 (4), 869-876, 2023-04-01

    The Japan Institute of Metals and Materials

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