| Biography | |
|---|---|
 Prof. Hongfa (Henry) Hu Automotive & Materials Engineering, University of Windsor, Canada |
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| Title: Electrolytic Plasma Oxidation Processes for Corrosion Protection of Mg Alloy AM50 | |
| Abstract: A Design of Experiment (DOE) technique, the Taguchi method, has been used to optimize the electrolytic plasma oxidation for the corrosion protection of magnesium alloy AM50. The experimental design consisted of four factors (treatment time, current density, and KOH and NaAlO2 concentrations), with three levels of each factor. Potentiodynamic polarization measurements were conducted to determine the corrosion resistance of the coated samples. An analysis of the mean of signal-to-noise (S/N) ratio indicates that the corrosion resistance of EPO-coated AM50 alloy is influenced significantly by the levels in the Taguchi orthogonal array. The optimized coating parameters for corrosion resistance are 12 minutes treatment time, 12 A/cm2 current density, 0.9 g/l KOH, 15.0 g/l NaAlO2. The percentage contribution of each factor is determined by the analysis of variance (ANOVA). The results show that the concentration of KOH is the most significant factor affecting the corrosion resistance of the coatings. | |
| Biography: Dr. Hongfa (Henry) Hu is a tenured full Professor at Department of Mechanical, Automotive & Materials Engineering, University of Windsor. He was a senior research engineer at Ryobi Die Casting (USA), and a Chief Metallurgist at Meridian Technologies, and a Research Scientist at Institute of Magnesium Technology. He received degrees from University of Toronto (Ph.D., 1996), University of Windsor (M.A.Sc., 1991), and Shanghai University of Technology (B.A.Sc., 1985). He was a NSERC Industrial Research Fellow (1995-1997). His publications (over 150 papers) are in the area of magnesium alloys, composites, metal casting, computer modelling, and physical metallurgy. He was a Key Reader of the Board of Review of Metallurgical and Materials Transactions, a Committee Member of the Grant Evaluation Group for Natural Sciences and Engineering Research Council of Canada, National Science Foundation (USA) and Canadian Metallurgical Quarterly. He has served as a member or chairman of various committees for CIM-METSOC, AFS, and USCAR. The applicant’s current research is on materials processing and evaluation of light alloys and composites. His recent fundamental research is focussed on transport phenomena and mechanisms of solidification, phase transformation and dissolution kinetics. His applied research has included development of magnesium automotive applications, cost-effective casting processes for novel composites, and control systems for casting processes. His work on light alloys and composites has attracted the attention of several automotive companies. | |
