MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Relationship Between the Liquidus Surface and Structures of Zr-Cu-Al Bulk Amorphous Alloys
Yoshihiko YokoyamaHiroshi InoueKenzo FukauraAkihisa Inoue
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2002 Volume 43 Issue 3 Pages 575-579

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Abstract

By using a Al2O3 cell coated with Si3N4, the melting point (Tm) of the cast bulk amorphous samples were measured on DTA curves cooled from the molten state. Based on the Tm data, the partial liquidus surface of Zr–Cu–Al ternary alloys was determined. A ternary eutectic point is located around Zr50Cu40Al10, and low melting temperatures of less than 1273 K were obtained in a wide compositional area of 40–70 at%Zr, 30–60 at% Cu and 0–10 at%Al. Bulk amorphous alloys in Zr–Cu–Al ternary system were produced by an arc-casting method and the highest tensile strength of 2000 MPa was observed in Zr50Cu40Al10.

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© 2002 The Japan Institute of Metals and Materials
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