Influence of powder metallurgy parameters on the mechanical Behaviour of Cu–9wt%B 4 C–15wt%MoO 3 composites

A flexible manufacturing technique that is frequently used to create a variety of metal matrix composites is powder metallurgy (PM). The PM process was used in this study to create Cu–9wt%B4C–15wt%MoO3composites, maximising important characteristics, such as compressive strength and microhardness. Compaction Pressure (CP), Sintering Temperature (S.Tem), and Sintering Time (S.Tim) are three important PM parameters that were comprehensively evaluated in this study using a combined Taguchi and ANOVA-based optimisation framework. Taguchi's L9 orthogonal array was used to design the experimental runs, which examined CP (350, 450, and 550 MPa), S.Tem (800, 900, and 1000 °C), and S.Tim (1, 2, and 3 h) at three different levels. For hardness, the optimal combination of parameters was 550 MPa CP, 1000°CS.Tem, and 1 hofS.For compressive strength, the optimal combination was 450 MPa CP, 1000°C S.Tem, and 3 h of S.Tim. The experimental values for compressive strength and hardness were 671 MPa and 333 HV, respectively. The ANOVA analysis of hardness and compressive strength clearly shows the percentage contributions of CP, S.Tem, and S.Tim. The percentage contribution obtained from the ANOVA analysis of hardness is 69.91% for CP, 22.22% for S.Tem, and 5.57% for S.Tim. The percentage contribution obtained from the ANOVA analysis of compressive strength: CP is 81.17%, S.Tem is 14.59%, and S.Tim is 1.98%. The CP has the biggest impact on hardness and compressive strength, according to an ANOVA analysis.