Abstract
Liquid-solid equilibria were studied in the iron-rich corner of the Fe-Cr-C-Nb system, using a combination of several experimental techniques, essentially differential thermal analysis (DTA) and all the usual means of characterization. A modified version of the DTA technique, quench-interrupted DTA, was employed in order to establish the solidification paths. The investigation was focused on the austenitic field for three levels of chromium (15, 9 and 3.5wt%). The corresponding projections of liquidus in the pseudoternary system are proposed. A slight influence of the other solute contents is found in the case of chromium. The occurrence of blocky NbC carbides depends on the solidification time since it is controlled by a coarsening mechanism.[/p]
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Kesri, R., Durand-Charre, M. Phase equilibria, solidification and solid-state transformations of white cast irons containing niobium. J Mater Sci 22, 2959–2964 (1987). https://doi.org/10.1007/BF01086497
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DOI: https://doi.org/10.1007/BF01086497