[Retracted] Optimization and Mechanical Properties of TiO₂ Reinforced AA 7150 Composites Using Response Surface Methodology

Table 11

The optimal parameters and outcomes. Overall, the desirability rating is 0.94.

Optimal parameters
	Temperature	Speed	Time
	780.1°C	568 rev/min	23 minutes
	Predicted values	Experimental value	Deviation (%)
Compressive strength	496.8 Mpa	489.4 Mpa	1.51
Elastic modulus	98.2 GPa	101.5 GPa	2.82
Impact strength	5.4 kJ/m^2	5.67 kJ/m^2	4.38
Microhardness	120.4 HV	118.4 HV	1.98
Ultimate tensile strength	660.5 MPa	639.4 MPa	2.59