Solidification Behaviour of Boron-Bearing High-chromium Cast Iron and the Modification Mechanism of Silicon
- 1 April 1988
- journal article
- research article
- Published by Taylor & Francis in Cast Metals
- Vol. 1 (2) , 79-85
- https://doi.org/10.1080/09534962.1988.11818951
Abstract
The solidification of high-chromium cast iron containing 2.5% C, 0.3% Mn, 15% Cr, 0.7% Mo, 0.5% B and various concentrations of Si is examined. Samples were liquid quenched at different stages of the eutectic solidification process and examined metallographically and by silicon linear scanning. Two growth patterns were observed during eutectic solidification; coupled growth of carbide and austenite (K/A) in the eutectic cell and divorced K/A growth. Silicon increases the number of carbide-phase nuclei, inhibits carbide growth and produces a finer and less continuous carbide phase.Keywords
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