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Compound Castings for the Coke Industry
1Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, 44-100 Gliwice, Poland.
Materials (Basel, Switzerland)
|July 27, 2024
Summary
This study explores compound casting of high-chromium steel and cast iron, revealing carbon and heat transfer as key to forming strong bonds. The developed technology is suitable for the coke industry.
Area of Science:
- Materials Science
- Metallurgy
- Manufacturing Engineering
Background:
- Compound castings offer advantages by combining properties of different materials.
- Joining dissimilar metals like high-chromium steel and cast iron presents bonding challenges.
- Existing methods may not be optimal for demanding industrial applications.
Purpose of the Study:
- To investigate the technology of compound castings using X46Cr13 high-chromium steel and EN-GJL-HB 255 grey cast iron.
- To identify and describe the mechanism of transitional zone formation in the bonding area.
- To assess the suitability of this technology for the coke industry.
Main Methods:
- Liquid-solid casting system with a pre-installed monolithic insert.
- Microstructural analysis of transitional zones.
- Mechanical testing and performance evaluation in industrial conditions.
Main Results:
- The formation of a permanent bond is driven by carbon and heat transport from the molten cast iron to the steel insert.
- A distinct transitional zone is formed at the interface between the two alloys.
- Compound casting plates successfully operated in real coke plant conditions, validating their performance for coke quenching car lining.
Conclusions:
- The developed compound casting technology effectively joins high-chromium steel and grey cast iron.
- Carbon and heat transfer are critical mechanisms for achieving a strong metallurgical bond.
- The technology is a viable solution for wear-resistant components in the coke industry.
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