Influence of Solid-Liquid Composite Casting on Interface and Microstructure of High Chromium Cast Iron

Abstract:

High chromium cast iron and stainless steel bimetal were fabricated by liquid-solid composite casting .The interface diffusion behavior and microstructure evolution of high chromium cast iron were studied. The results indicated that interface element diffusion behavior between stainless steel and high chromium cast iron was obviously existed. Under experimental conditions, there were many refined grainy-shaped carbides precipitation in stainless steel near interface, located at austenite grain boundary and intragranular austenite. As for high chromium cast iron, the morphology of the carbides varied from the interface to the specimen edge. The rod shaped carbides approached to composite interface were finer and become coarser rod-like or blade-like with increased distance from the composite interface. The reasons for elements diffusion and microstructure change were associated with alloys contents and temperature field.

• Periodical: Advanced Materials Research (Volume 1088)
• Pages: 260-264
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1088.260
• Online since: February 2015
• Authors: Xiu Lan Li*, Xin Jun Zhou, Wen Ling Xie, You Ping Ma
• Keywords: Composite Casting, High Chromium Cast Iron, Interface, Microstructure, Stainless Steel

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