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Experimental investigation of Zr-rich Zr–Zr2Ni–(Zr,Ti)2Ni ternary eutectic system

Published online by Cambridge University Press:  31 January 2011

Dong-Myoung Lee ,
Ju-Hyun Sun ,
Dong-Han Kang ,
Seung-Yong Shin  and
Chi-Whan Lee
Seung-Yong Shin*
Affiliation:
Eco Materials & Processing Department, Korea Institute of Industrial Technology, Yeonsu-Gu, Incheon 406-840, Korea
Chi-Whan Lee
Affiliation:
Department of Metallurgical Engineering, Inha University, Nam-Gu, Incheon 402-751, Korea
*
a) Address all correspondence to this author. e-mail: seung@kitech.re.kr
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Abstract

As potential substitutes for traditional Ti(Zr)–Cu–Ni-based brazing metals for high strength Ti alloys as well as a study for metallic glass, Zr–Ti–Ni-based alloys have been attracting much attention recently. In this study, the melting temperatures and microstructures of the Zr(Ti)-rich Zr–Ti–Ni alloys with Ni content below 33.3 at.% were systematically studied. A ternary deep eutectic alloy consisting of three phases was found at the composition of Zr50Ti26Ni24 with a solidus temperature of 798 °C and a liquidus temperature of 809 °C, which are significantly lower than the Zr2Ni–(Zr,Ti)2Ni pseudobinary eutectic melting temperature of 850 °C. This ternary eutectic reaction can be presented as L → α-(Zr/Ti) solid solution + Zr2Ni + ternary Laves (Zr,Ti)2Ni.

Keywords

AlloyAmorphousBrazing
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 7 , July 2009 , pp. 2338 - 2345
Copyright
Copyright © Materials Research Society 2009

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