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A study on dental nonprecious cast alloys

Part 3Tensile properties in the ternary nickel-copper-manganese alloys: Influence of adding aluminium and indium

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Abstract

The ternary nickel-copper-manganese (Ni-Cu-Mn) cast alloys were studied on hardening by the addition of elements such as aluminium and indium to the ternary alloys. Tensile tests showed that both the 20 Ni-40 Cu-40 Mn (which has the lowest melting temperature of all the Ni-Cu-Mn ternary alloys investigated) and the 50 Ni-30 Cu-20 Mn (with the highest melting temperature) exhibited a ductile behaviour. Dendritic structures seen by optical microscopy were constituted of ternary alloys containing aluminium and indium and the amount of dendritic structures increased in the indium-containing alloys rather than in the aluminium containing alloys, and as a result the hardness (VHN) had larger values in the latter alloy than in the former alloy.

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Sosrosoedirdjo, B.I., Wakasa, K. & Yamaki, M. A study on dental nonprecious cast alloys. J Mater Sci 24, 3667–3672 (1989). https://doi.org/10.1007/BF02385754

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  • DOI: https://doi.org/10.1007/BF02385754

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