Abstract
Al coated steel sheets are being used for heat resisting application such as muffler for automobile, fuel tank, microwave oven, and combustion chamber parts. These are commercially produced by hot-dip galvanizing process and their heat resisting properties are depending on their processes. In this study, Al coated steel sheets are fabricated by sputtering process in order to compare their properties with the ones of galvanizing.Hot-dip Al coated steel sheet (HACSS) showed a typical solidified structure of Al–Si alloy; primary Al dendrite and Al–Si eutectic structure. Intermetallic compounds were found between the coating layer and the steel substrate. On the other hand, sputtered Al coated steel sheet (SACSS) represented a well-mixed structure of Al–Si. No intermetallics were observed. Heat resistance tests were carried out at 450 °C and 500 °C. HACSS was discolored at 450 °C, but SACSS at 500 °C. In this study, heat resistance experimental results are analyzed and discussed based on their microstructures of non-ferrous/ferrous metal hybrid system.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
