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Hardenability effect of boron on carbon steels

Hong-Rang Lin, Gwo-Hwa Cheng

Abstract

An attempt has been made to investigate the effects of aluminium, titanium, nitrogen, and boron on the hardenability of boron-bearing medium-carbon steels. It was found that not only titanium but also boron had the scavenging effect for dissolved nitrogen. A parameter designated as boron potential (Bp = xB−11/14(xN−14/47·9XTi), where xB, xN, and xTi are the total boron, nitrogen, and titanium content, respectively) was chosen to evaluate and predict the boron hardenability effect. From the results of this study, boron potential is a parameter useful in discerning the optimization of contents of titanium, nitrogen, and boron for the development of boron steels having excellent hardenability.MST/655

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Key concepts: Hardenability, Boron, Materials science, Titanium, Nitrogen, Carbon fibers, Metallurgy, Aluminium