Effects of Adhesive and Interphase Characteristics between Matrix and Reinforced Nanoparticle of AA5154/AlN Nanocomposites

The interphase is formed due to chemical reaction between the matrix and filler materials or the use of protective coatings on the reinforcement during manufacturing. It is the weakest link in the load path, and consequently most failures in particulate reinforced composites, such as debonding, and matrix cracking, occur in or near this region. In this article two types of RVE models have been implemented using finite element analysis. Aluminum nitride nanoparticles were used as a reinforcing material in the matrix of AA5154 aluminum alloy. It has been observed that the nanoparticle did not overload during the transfer of load from the matrix to the nanoparticle via the interphase due to existence of interphase between the nanoparticle and the matrix. The tensile strength has increased from 424.22 to 435.78 MPa with an interphase around aluminum nitride nanoparticle in the AA5154/AlN nanocomposites.