TY  - JOUR
A1  - Cabeza, Sandra
A1  - Mishurova, Tatiana
A1  - Garcés, Gonzales
A1  - Sevostianov, Igor
A1  - Requena, Guillermo
A1  - Bruno, Giovanni
T1  - Stress-induced damage evolution in cast AlSi12CuMgNi alloy with one- and two-ceramic reinforcements
JF  - Journal of materials science
N2  - Two composites, consisting of an as-cast AlSi12CuMgNi alloy reinforced with 15 vol% Al2O3 short fibres and with 7 vol% Al2O3 short fibres + 15 vol% SiC particles, were studied. Synchrotron computed tomography disclosed distribution, orientation, and volume fraction of the different phases. In-situ compression tests during neutron diffraction in direction parallel to the fibres plane revealed the load partition between phases. Internal damage (fragmentation) of the Si phase and Al2O3 fibres was directly observed in CT reconstructions. Significant debonding between Al matrix and SiC particles was also found. Finally, based on the Maxwell scheme, a micromechanical model was utilized for the new composite with two-ceramic reinforcements; it rationalizes the experimental data and predicts the evolution of all internal stress components in each phase.
Y1  - 2017
U6  - https://doi.org/10.1007/s10853-017-1182-7
SN  - 0022-2461
SN  - 1573-4803
VL  - 52
SP  - 10198
EP  - 10216
PB  - Springer
CY  - New York
ER  -