Rh-base refractory superalloys for ultra-high temperature use

Journal Article · Fri Feb 14 23:00:00 EST 1997 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(96)00408-3· OSTI ID:438620

Yamabe-Mitarai, Y; Koizumi, Y; Murakami, H; Ro, Y; Harada, H ^[1]; Maruko, T ^[2]

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1. National Research Inst. for Metals, Tsukuba, Ibaraki (Japan)
2. Furuya Metals Co., Ltd., Simodate, Ibaraki (Japan)

In the previous paper, the authors proposed a new class of superalloys, namely, refractory superalloys. This new concept is defined as alloys with fcc and L1{sub 2} coherent two phase structures similar to Ni-base superalloys, and yet with considerably higher melting temperatures. In this paper, Rh-Nb and Rh-Ti systems were selected to compare with Ir-Nb and Ir-Ti systems which were shown in the previous paper. Rh-Ta system was also selected because of its highest melting temperatures among above binary systems. The microstructure evolution and high temperature strengths of these Rh-base alloys were investigated.

• OSTI ID: 438620
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 4 Vol. 36; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BINARY ALLOY SYSTEMS
MELTING
MICROSTRUCTURE
NIOBIUM ALLOYS
PHASE DIAGRAMS
RHODIUM ALLOYS
SAMPLE PREPARATION
TANTALUM ALLOYS
TITANIUM ALLOYS
ULTIMATE STRENGTH