Phase relationships in Cu-rich corner of the Cu-Cr-Zr phase diagram

Journal Article · Thu Jun 15 04:00:00 EDT 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00084-9· OSTI ID:92970

Zeng, K J; Haemaelaeinen, M; Lilius, K ^[1]

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1. Helsinki Univ. of Technology, Espoo (Finland). Lab. of Materials Processing and Powder Metallurgy

In the available experimental information on the Cu-Cr-Zr ternary system, there exist different opinions concerning the phase relationships in the Cu-rich corner of Cu-Cr-Zr phase diagram. Glazov et al. and Zakharov et al. investigated the Cu-rich corner of the Cu-Cr-Zr phase diagram within the composition range up to 3.5 Cr and 3.5 Zr (wt. %). A quasi-eutectic reaction L {yields} (Cu) + {alpha}Cr{sub 2}Zr was observed to occur at 1,020 C and several isothermal sections were constructed within the temperature range from 600 to 1,000 C to show the (Cu)-{alpha}Cr{sub 2}Zr two phase equilibrium. Therefore, a pseudobinary Cu-Cr{sub 2}Zr system was supposed. Afterwards, Dawakatsu et al, Fedorov et al, and Kuznetsov et al studied the cu-rich corner of the phase diagram in a wider composition range up to 5 Cr and 20 Zr (at.%). Contrary to Glazov et al. and Zakharov et al., they found no Cr{sub 2}Zr phase in their samples. Hence, the pseudobinary Cu-Cr{sub 2}Zr system does not exist. In this study an experimental investigation is presented on the phase relationships in Cu-rich corner of the Cu-Cr-Zr phase diagram at 940 C in order to clear up the confusion.

• OSTI ID: 92970
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 12 Vol. 32; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
CHROMIUM ALLOYS
COPPER ALLOYS
EXPERIMENTAL DATA
INTERMETALLIC COMPOUNDS
PHASE STUDIES
SAMPLE PREPARATION
TERNARY ALLOY SYSTEMS
ZIRCONIUM ALLOYS