Effects of SiC on precipitation in aluminum alloy 6061

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5443169

Papazian, J M ^[1]

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1. Grumman Aerospace Corp., Bethpage, NY (USA)

DSC was used to study the sequence and rate of formation of metastable, age-hardening precipitates in several 6061 aluminum alloy materials. The materials included extrusions produced by traditional ingot metallurgy practice, extrusions produced by a powder metallurgy (PM) process and PM extrusions that contained 20% SiC whiskers. All of these materials had the same nominal chemical composition, but precipitation of the metastable phases was different in the different materials. Reaction kinetics were also significantly affected. The role of the inert SiC whiskers and other microstructural constituents are discussed relative to these observations.

• OSTI ID: 5443169
• Report Number(s): CONF-840909--
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Vol. 56; ISSN 0197-1689; ISSN TMPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
AGE HARDENING
ALLOYS
ALUMINIUM ALLOYS
CALORIMETRY
CARBIDES
CARBON COMPOUNDS
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
EXTRUSION
FABRICATION
HARDENING
KINETICS
MATERIALS WORKING
METALLURGICAL EFFECTS
METALLURGY
MICROSTRUCTURE
PHASE STUDIES
POWDER METALLURGY
PRECIPITATION
REACTION KINETICS
SEPARATION PROCESSES
SILICON CARBIDES
SILICON COMPOUNDS