ISSN 2594-5327
59º Congresso anual — Vol. 59 , num. 1 (2004)
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Alloys under study were obtained by melting pure zirconium and tin together with a master alloy of hafnium-zirconium (96.5 wt. % Hf) in an arc furnace. The compositions of the studied alloys were selected in order to establish equilibria between the intermetallic Mn₅Si₃-type and the solid solution phase rich in the transition metals. Isothermal heat treatments were performed at 900 and 1100 ºC. The characterization of the phases and the determination of their compositions were made by metallographic observations, X-ray diffraction patterns and electron microprobe analysis. Lattice parameters of the phases in equilibrium were calculated applying the PowderCell program. From the obtained results, general drawings of equilibria in the zone between 0 and 37.5 at. % of tin of the Hf-Zr-Sn (hafnium-zirconium-tin) system can be outlined at the mentioned temperatures.
Alloys under study were obtained by melting pure zirconium and tin together with a master alloy of hafnium-zirconium (96.5 wt. % Hf) in an arc furnace. The compositions of the studied alloys were selected in order to establish equilibria between the intermetallic Mn₅Si₃-type and the solid solution phase rich in the transition metals. Isothermal heat treatments were performed at 900 and 1100 ºC. The characterization of the phases and the determination of their compositions were made by metallographic observations, X-ray diffraction patterns and electron microprobe analysis. Lattice parameters of the phases in equilibrium were calculated applying the PowderCell program. From the obtained results, general drawings of equilibria in the zone between 0 and 37.5 at. % of tin of the Hf-Zr-Sn (hafnium-zirconium-tin) system can be outlined at the mentioned temperatures.
Palavras-chave
phase diagram, transition metals, alloys
phase diagram, transition metals, alloys
Como citar
Ruiz, Diego Hernán; Gribaudo, Luis María; Monti, Ana María.
THE ZIRCONIUM-HAFNIUM-TIN (Zr-Hf-Sn) SYSTEM – PHASES IN EQUILIBRIUM INVOLVING THE HEXAGONAL Mn₅Si₃ – TYPE INTERMETALLIC,
p. 896-903.
In: 59º Congresso anual,
São Paulo, Brasil,
2004.
ISSN: 2594-5327, DOI 10.5151/2594-5327-3726
