Fundamental Analysis of Pure Titanium and Its Alloy Corrosion and Water Wettability in Solution

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  • Kido Mitsuo
    Department of Mechanical Engineering, Faculty of Technology, Hiroshima Institute of Technology
  • Suzumura Fumihiro
    Department of Mechanical Engineering, Faculty of Technology, Hiroshima Institute of Technology
  • Mukai Koji
    Intelligent Structure and Functional Science, Graduate School of Science and Technology, Hiroshima Institute of Technology
  • Tokuda Tarou
    Department of Mechanical Engineering, Faculty of Technology, Hiroshima Institute of Technology
  • Wang Rongguang
    Department of Mechanical Engineering, Faculty of Technology, Hiroshima Institute of Technology
  • Katayama Gonojo
    Department of Mechanical Engineering, Faculty of Technology, Hiroshima Institute of Technology

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Other Title
  • 純チタンおよびチタン合金の水溶液下での腐食と水濡れ性の基礎的解析

Abstract

  Wettability of a material surface plays a very important role in solid-liquid interaction phenomena used to analyze material surface treatments, soldering, and for the improvement of material properties with surfactant solutions and lubricants.<br>    In this research, the shape of a liquid droplet on a solid surface was studied theoretically following the corrosion of pure titanium and the titanium alloy in NaF solution. In general, the wettability of a material surface is evaluated by the contact angle of the liquid droplet formed on the solid surface. The shape of the liquid droplet was solved with a nonlinear differential equation numerically derived from the Laplace equation. The contact angle of the numerically derived and experimentally measured shape of water droplets was compared.<br>    As a result, the variation in the shape of the water droplet due to surface corrosion might greatly influence the contact angle.<br>

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