E. Hochreiter et F. Jeglitsch, INFLUENCE OF COMPOSITION AND DISTRIBUTION OF THE REINFORCING PARTICLES ON FATIGUE PROPERTIES OF METAL-MATRIX COMPOSITES, Journal de physique. IV, 3(C7), 1993, pp. 1763-1767
Fatigue-life-time behaviour has been examined of extruded 6061 alumini
um alloy composites reinforced with 15 vol.% SiC and 10 vol.% Al2O3 pa
rticles. The peak particle sizes are at about 4.5 and 6 mu m. Within m
easured S-N curves the fatigue life-time at given stress amplitudes of
SiCp/AA6061 is superiour well as in the high-cycle fatigue region. Th
e discussion of these results has been done by means of theoretical ev
aluated crack propagation curves. Interfacial bonding has been studied
by means of TEM investigations.