Abstract
Mechanical properties of two ternary carbides MAX phases (Ti2AlC and Ti3AlC2) were investigated under cyclic bending tests with coupled acoustic emission monitoring (AE). Results show significant differences in terms of observed microstructural changes associated to acoustic emission response. Influence of the proportion of MAX phases and the presence of porosity in the sample were studied. It was found that homogeneous proportions of MAX phases led to an increase of interfaces in the material and thus to lower mechanical properties, with a more acoustically active behaviour. Porosity was found to be a preferential site of initiation and propagation of cracks, leading to samples enduring slower but earlier rupture.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
