Abstract
Consolidation of tool steel powders and simultaneous joining to a stainless 316L steel are performed by hot isostatic pressing (HIP). Two tool steel grades are considered: a high vanadium alloyed carbon tool steel, and a high vanadium and chromium alloyed nitrogen tool steel. The boundary layer arising during diffusion bonding is in focus and, in particular, the diffusion of carbon and nitrogen over the joint. Measurements of the elemental concentration profiles and corrosion tests by the double loop–electrochemical potentiokinetic reactivation (DL-EPR) method are performed. Comparative calculations with the DICTRA software are performed and are found to be in agreement with the experimental results. It is found that the carbon tool steel grade has a more critical influence on the corrosion resistance of the stainless 316L steel in comparison to the nitrogen tool steel grade.
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Acknowledgments
This work was financed by Böhler Edelstahl, Uddeholms AB, and Böhler-Uddeholm AG. A part of the experimental work was performed within the member programme IM-TEMA4 Powder at Swerea KIMAB, and Shahjahan Chowdhury, Martin Linders, and Magnus Tidesten, members of the research committee, are acknowledged for their contributions. Further, the authors thank Christer Eggertsson and Nicholas Olsson for their experimental assistance.
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Manuscript submitted April 13, 2010.
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Lindwall, G., Flyg, J., Frisk, K. et al. Experimental and Theoretical Investigations of Hot Isostatically Pressed–Produced Stainless Steel/High Alloy Tool Steel Compound Materials. Metall Mater Trans A 42, 1165–1172 (2011). https://doi.org/10.1007/s11661-010-0480-3
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DOI: https://doi.org/10.1007/s11661-010-0480-3