Solidification phenomena during casting of stainless steel/cast iron composites
- Publication Type:
- Conference Proceeding
- TMS Annual Meeting, 2012, 2 pp. 267 - 274
- Issue Date:
A process in which high chromium white cast iron can be melted and cast in situ against a solid austenitic stainless steel substrate is described and the interfacial phenomena analysed. Good metallurgical bonding can be obtained even if the process is conducted in air. Considerable mass transfer of alloying elements across the solid-liquid interface takes place during the process and the resulting microstructure is complex. The microstructure and diffusion profiles were mapped using energy and wavelength dispersive spectroscopy. The interface microstructure is largely the result of counter-current fluxes of carbon and nickel which, in association with the growth of austenite dendrites, generates a succession of different microstructures across the interface.
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