Corrosion Science and Technology

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Evaluation of Dynamic Wettability of Liquid Zn with Steel Sheets Containing Si and Mn

  • Tanaka, Toshihiro (Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University)
  • Received : 2009.09.18
  • Accepted : 2010.03.26
  • Published : 2010.04.01
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Abstract

It is pointed out that non-wetting behavior of liquid Zn alloy occurs on high-tensile strength steels, which usually contain Si and Mn. There have been a lot of investigations to improve the above wettability of liquid Zn alloy with steels containing Si and Mn. Although those studies evaluated the wettability qualitatively by observation of the surface of steels galvanized by Zn or exfoliation test of Zn with substrate steels and so on, it is required to evaluate the wettability of liquid Zn with steels by measuring contact angle, work of adhesion, spreading velocity etc. which are usually used to assessment of general wetting behavior. In the present work, we evaluated the wettability of liquid Zn with steels containing Si and Mn by applying a sessile drop method to measure the change in contact angle and diameter of liquid Zn droplet wetted on steels.

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