Refractory Hard Alloys Elaborated by Casting of Ternary (Co, Ni Fe)-30Cr-2.5 to 5 wt% C Compositions ()
Patrice Berthod,
Ophélie Hestin,
Elise Souaillat,
Moussa Ba,
Ahmed Dia,
Lionel Aranda,
Thierry Schweitzer,
Ludovic Mouton,
Alain Kohler,
Pascal Villeger,
Elodie Conrath
Faculty of Sciences and Technologies, University of Lorraine, Vandoeuvre-lès-Nancy, France.
DOI: 10.4236/msce.2015.37017
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Abstract
Three series of ternary alloys of the
{M-30Cr-xC}-type with M = Co, Ni or Fe and x ranging from 2.5 to 5 wt% were
elaborated by casting. Their microstructure characterizations by XRD and SEM
show that very high volume fractions in chromium carbides (even more than 50%)
may be obtained in a metallic matrix by this way. However graphite may also
appear in very low quantities in the carbon-richest alloys. The hardness
increases with the carbon content (up to 1000 Hv30kg) but it may be a little
lowered when graphite is also present. The results show that very hard alloys
may be simply obtained by casting of rather cheap elements.
Share and Cite:
Berthod, P. , Hestin, O. , Souaillat, E. , Ba, M. , Dia, A. , Aranda, L. , Schweitzer, T. , Mouton, L. , Kohler, A. , Villeger, P. and Conrath, E. (2015) Refractory Hard Alloys Elaborated by Casting of Ternary (Co, Ni Fe)-30Cr-2.5 to 5 wt% C Compositions.
Journal of Materials Science and Chemical Engineering,
3, 127-135. doi:
10.4236/msce.2015.37017.
Conflicts of Interest
The authors declare no conflicts of interest.
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