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Characteristics of Zn-Ni Electrodeposition of 60 kgf/$\textrm{mm}^2$ Grade Transformation Induced Plastic Steel Sheets for Automotive Body  

Kim D. H. (순천대 재료금속공학과)
Kim B. I. (순천대 재료금속공학과)
Jeon Y. T. (현대하이스코 기술연구소)
Jeong Y. S. (현대하이스코 기술연구소)
Publication Information
Journal of the Korean institute of surface engineering / v.37, no.5, 2004 , pp. 263-272 More about this Journal
Abstract
High strength steels such as transformation induced plastic steel, dual phase and solid solution Hardening have been developed and continuously improved due to the intensified needs in the automotive industry. But silicon and manganese in transformation induced plastic steels were known to exhibit harmful effects on galvannealing reaction by oxide film formed during heat treatment. Therefore, in this work, the applicability of Zn-Ni electrodeposition instead of hot dip galvannealed coating to transformation induced plastic steels was evaluated and optimum electroplating condition was investigated. Based on these investigations optimized electroplating conditions were proposed and Zn-Ni electrogalvanized steel sheet was produced by EGL (electrogalvanized line). Its perfomance properties for automotive steel was evaluated.
Keywords
High strength; Zinc; Electrodeposition Nickel; Si; Mn; Enrichment;
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