期刊
INTERNATIONAL MATERIALS REVIEWS
卷 66, 期 6, 页码 394-425出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09506608.2020.1821485
关键词
High-heat-flux; additive manufacturing; powder metallurgy; combustion chamber liner; precipitation hardening; dispersion strengthening; thermal conductivity; low-cycle thermal fatigue; creep
资金
- National Science Foundation [IIP1540000, IIP1822186]
- Oak Ridge National Laboratory
This review discusses the development and current state of Cu-rich Cu-Cr-Nb alloys, specifically focusing on GRCop-84 and GRCop-42. Recent advancements in additive manufacturing have boosted interest in GRCop alloys, with full-scale hardware and hot-fire tests being conducted, but further research on structure-property relationships is needed. Comparisons to other high-heat-flux Cu alloys are made, and future prospects and advantages provided by additive manufacturing for GRCop alloys are assessed.
This review examines the development and current state of Cu-rich Cu-Cr-Nb alloys commonly referred to as GRCop or Glenn Research copper alloys with emphasis on Cu-8Cr-4Nb (at%), or GRCop-84, and Cu-4Cr-2Nb, or GRCop-42. Recent additive manufacturing efforts have increased interest in GRCop alloys, and full-scale hardware has been fabricated using AM techniques and practical hot-fire tests have been conducted, but structure-property relationships are still under development. The development, processing, and current microstructure-property relationships of GRCop alloys are reviewed along with comparisons to similar high-heat-flux Cu alloys including NARloy-Z, GlidCop Al-15, AMZIRC, Cu-1Cr-0.1Zr, and Cu-0.9Cr. The review concludes with an assessment of future prospects for GRCop alloys and overview of advantages provided by additive manufacturing.
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