1 research outputs found
Influence of processing route and reinforcement content on the creep fracture parameters of aluminium alloy metal matrix composites
An attempt to understand the rupture creep behavior of aluminum alloy metal matrix composites is
made. Data from published investigations on the creep fracture of a variety of materials as well as new
data on 6061Al–40 vol% SiCw composite have been analyzed. The analysis is made on the basis of previous
studies conducted by these authors in which the relevance of the load partitioning phenomenon was
manifested. Thewell-knownphenomenological approachdescribedby theMonkman–Grant equation has
been employed. It is seen that the commonly used approximation of n = 1 (with n the Monkman–Grant
exponent) is never satisfied. Rather, n < 1 is always obtained. A new form of this equation is proposed in
order to understand the creep rupture mechanisms of these materials in greater depth.Project MAT-05-0527 from MEC, Spain. Dr. J. Wolfenstine for
providing the 6061Al–40 vol% SiCw compositePeer reviewe