Fabrication and characterisation of AZ91D/TCP reinforced composites by stir casting method

This study focuses on fabricating and characterizing ceramic composites using AZ91D magnesium alloy reinforced with Tricalcium Phosphate (TCP) particles. Uniform distribution of TCP within the matrix was achieved through conventional stir casting. TCP particles, averaging 63 mu, were incorporated at weight fractions ranging from 5% to 15%. Cast into grey cast iron molds, cylindrical rods measuring 14 mm in diameter and 100 mm in length were produced. Investigating the impact of different weight percentages of reinforcements on particulate distribution, matrix-particulate interfacial reactions, and mechanical properties, the study utilized SEM and EDS analyses, revealing uniform TCP distribution indicative of successful fabrication. Evaluation of both reinforced and unreinforced composites showcased improved mechanical properties in TCP-reinforced samples. Additionally, discussion on the factrography of compression specimens provided insights into microstructural features and deformation behavior under compression. In summary, this research significantly advances magnesium alloy-based composites, unlocking potential applications across various industries.