SYMPOSIA PAPER Published: 01 January 1988
STP25966S

Influence of Heat Treatments and Working on Mechanical Properties of Silicon Carbide Reinforced Aluminum Alloys

Source

Three grades of silicon carbide (SiC) reinforced aluminium alloys are studied: one grade fabricated by powder metallurgy and reinforced by ≈25% volume fraction (vf) SiC particulates; two grades produced by casting and reinforced by ≈15% vf SiC whiskers.

Their behavior during hot working is simulated using unloading and holding times during high temperature tension testing. The three grades are also worked by extrusion and forging and the defects appearing on the wrought pieces are observed.

Mechanical properties of the three grades are represented versus temperature in the as received state, in the annealed state and in some cases after forging and annealing.

Microstructure is observed and its influence on mechanical properties is discussed.

Author Information

Heritier, J
UNIREC, Groupe USINOR, Centre de Recherches d'Unieux, Firminy, France
Balladon, P
UNIREC, Groupe USINOR, Centre de Recherches d'Unieux, Firminy, France
Rambaud, J
Groupe USINOR-SACILOR, France
Chevet, F
Groupe USINOR-SACILOR, France
De Coquereaumont, M
Groupe USINOR-SACILOR, France
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Details
Developed by Committee: D30
Pages: 383–395
DOI: 10.1520/STP25966S
ISBN-EB: 978-0-8031-5038-6
ISBN-13: 978-0-8031-0967-4