Production of AA 2014 Matrix Wollostanite/Wood Ash Solid Waste Particle Reinforced Hybrid Composite with Powder Metallurgy and Investigation of Its Structural Properties

Abstract

AbstractIn this study, using AA 2014 aluminum alloy, AA2014/wollastanite, AA2014/wood ash, and AA2014/wollastanite/wood ash composite hybrid materials were produced by powder metallurgy method. The powders, whose mixing ratios were determined by weight, were mixed in a 3-dimensional mixer for 30 min. The prepared mixture powders were pressed uniformly under a pressure of 700 MPa, and cylindrical materials with a diameter of 10 mm were obtained. Then, the materials were sintered for 1 h under argon gas flow at a temperature of 600°C. The density, microstructure, hardness, and wear behavior of the materials were examined. It was observed that the density of the composite materials increased relatively compared to AA 2014 alloy. As the particle reinforcement ratios increased, porosity amounts also increased in the composite and especially in the hybrid materials. In the wood ash-reinforced composite materials, the particles were distributed more homogeneously in the microstructure. The highest hardness value obtained was 70.65 HV in AA2014/15% wollastanite composite material. The weight loss increased in the materials created by particle reinforcement, and the lowest weight loss (170 mg) was determined in this material.