Properties and potential of high-temperature niobium beryllides

Conference · Tue Dec 01 00:00:00 EST 1992

OSTI ID:10180593

Bruemmer, S M; Brimhall, J L; Henager, Jr, C H ^[1]; Hirth, J P ^[2]

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1. Pacific Northwest Lab., Richland, WA (United States)
2. Washington State Univ., Pullman, WA (United States)

Recent research on the low- and high-temperature properties of two beryllium-niobium intermetallic compounds, Be{sub l2}Nb and Be{sub l7}Nb{sub 2}, is reviewed and discussed. Strength (bend and compression), hardness and fracture toughness has been mapped as a function of test temperature up to 1200C. Results for hot-isostatically-pressed Be{sub 12}Nb and Be{sub l7}Nb{sub 2} are highlighted illustrating the potential for reasonable strength at both low and high temperatures. Limitations for structural use of the beryllides are identified and discussed including low-temperature toughness, intermediate-temperature embrittlement, high-temperature creep strength and composite compatability.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10180593
• Report Number(s): PNL-SA-21290; CONF-921101-137; ON: DE93019169
• Resource Relation: Conference: 16. Materials Research Society (MRS) fall meeting,Boston, MA (United States),30 Nov - 5 Dec 1992; Other Information: PBD: Dec 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NIOBIUM ALLOYS
MECHANICAL PROPERTIES
BERYLLIUM ALLOYS
INTERMETALLIC COMPOUNDS
BENDING
FRACTURE PROPERTIES
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
COMPRESSION STRENGTH
MICROHARDNESS
CREEP
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