Joint Properties of Cast Fe-Pt Magnetic Alloy Laser-welded to Co-Cr Alloy

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  • BABA Naoki
    Department of Developmental and Reconstructive Medicine, Division of Fixed Prosthodontics and Oral Rehabilitation, Nagasaki University Graduate School of Biomedical Sciences
  • WATANABE Ikuya
    Department of Biomaterials Science, Baylor College of Dentistry, Texas A & M University System Health Science Center
  • TANAKA Yasuhiro
    Department of Developmental and Reconstructive Medicine, Division of Dental and Biomedical Materials Science, Nagasaki University Graduate School of Biomedical Sciences
  • HISATSUNE Kunihiro
    Department of Developmental and Reconstructive Medicine, Division of Dental and Biomedical Materials Science, Nagasaki University Graduate School of Biomedical Sciences
  • ATSUTA Mitsuru
    Department of Developmental and Reconstructive Medicine, Division of Fixed Prosthodontics and Oral Rehabilitation, Nagasaki University Graduate School of Biomedical Sciences

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Abstract

This study investigated the joint properties of Fe-Pt alloy laser-welded to Co-Cr alloy. Cast plates (0.5×3.0×10mm) were prepared with Fe-Pt and Co-Cr alloys. Fe-Pt plates were butted against Co-Cr plates and laser-welded using Nd: YAG laser. Control and homogeneously welded specimens were also prepared. Laser welding was performed with and without argon shielding. Tensile testing was conducted, and both fracture force (Ff: N) and elongation (El: %) were recorded. There were no differences in the Ff value between the specimens with and without argon shielding for the welded Fe-Pt/Co-Cr. Lower Ff value of the welded specimen was obtained in the order of Fe-Pt alloy<Fe-Pt/Co-Cr<Co-Cr alloy. The results indicated that Fe-Pt welded to Co-Cr had Ff values between the values of homogeneously welded Fe-Pt and Co-Cr alloys. Argon shielding, on the other hand, had no effect on the weld strength between Fe-Pt and Co-Cr alloys.

Journal

  • Dental Materials Journal

    Dental Materials Journal 24 (4), 550-554, 2005

    The Japanese Society for Dental Materials and Devices

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