Defect Control and Interfacial Microstructure of Laminated Composites of TiB₂-Based Ceramic to 1Cr18Ni9Ti Stainless Steel by Reaction Fusion Bonding

Abstract:

By taking Ti-B₄C and CrO₃-Al as the primary system and the subsystem respectively, the curve dependence of CrO₃-Al subsystem on the adiabatic temperature of the reactive system was calculated in chemical dynamics, and laminated composite with TiB₂-based ceramic to stainless steel was achieved without Al₂O₃ inclusions and microcracks at the interface, and the intermediate was clearly presented between the ceramic and the stainless steel through liquid fusion and liquid diffusion of the ceramic liquid and the molten steel. Because of the differences in constitutional diffusion and solid precipitation, the hybrid microstructures was presented in the intermediate, i.e. within the intermediate the ceramic and metallic phases in different size were alternately distributed to form 3-D net ceramic-metal microstructure, while the continuously-graded microstructure from the TiB₂ matrix ceramic to stainless steel was also presented in both volume fraction and size of the TiB₂ and TiC phases.

• Periodical: Key Engineering Materials (Volume 633)
• Pages: 198-203
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.633.198
• Online since: November 2014
• Authors: De Jun Yin, Zhong Min Zhao, Bao Jun Wu, Long Zhang, Ya Lin Song
• Keywords: Defect Control, Fusion Bonding, Graded Microstructure, Laminated Composite

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