The aging response and creep of DRA composites

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · JOM (Journal of the Minerals, Metals and Materials Society); (United States)

OSTI ID:6253809

Bhagat, R B; House, M B; Meinert, K C ^[1]

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1. Pennsylvania State University, University Park (United States)

The present discussion of results obtained by characterizations of the hardening rates of 6061 Al alloy/20-percent SiC whisker composites and 6061 Al alloy/15-percent Al2O3 particulate composites notes that, under identical aging conditions, the tensile strength of the former is about 65 percent higher than that of the latter. The whisker-reinforced composite's stiffness is, moreover, approximately 60 percent higher than that of the other material. At 350 C, the whisker-reinforced composite has 55 percent higher strength than the particulate-reinforced composite, by comparison with a 111 percent advantage at room temperature. The whisker composite also shows a two-orders-of-magnitude greater resistance to creep. 37 refs.

• OSTI ID: 6253809
• Journal Information: JOM (Journal of the Minerals, Metals and Materials Society); (United States), Journal Name: JOM (Journal of the Minerals, Metals and Materials Society); (United States) Vol. 43; ISSN JOMME; ISSN 1047-4838
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMBIENT TEMPERATURE
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CREEP
CRYSTAL STRUCTURE
CRYSTALS
HARDENING
HEAT TREATMENTS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PRECIPITATION HARDENING
SILICON CARBIDES
SILICON COMPOUNDS
TENSILE PROPERTIES
WHISKERS