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

Table 4

Experimental results, levels, and outputs.

Experimental run	Levels			Factors			Responses
	A(°C)	B(rpm)	C(min)	A(°C)	B(rpm)	C(min)	YS	UTS	EM	El	IM
1	−1	−1	−1	550	450	10	501	581	82.6	8.76	4.21
2	0	0	−1.68	550	450	10	525	642	90.1	7.84	5.31
3	0	0	0	550	450	10	529	689	91.4	7.51	5.74
4	0	0	0	550	550	15	546	635	86.5	7.52	5.46
5	0	0	0	550	550	15	575	719	95.3	6.79	6.41
6	0	1.68	0	550	550	15	588	682	98.2	6.43	6.86
7	1	1	−1	550	650	20	522	600	79.4	7.82	4.86
8	−1	1	1	550	650	20	559	622	88.6	7.99	5.51
9	−1.68	0	0	550	650	20	574	637	92.1	6.62	5.90
10	1.68	0	0	650	450	15	530	634	87.3	8.55	5.17
11	0	0	0	650	450	15	558	715	92.3	7.24	5.86
12	1	−1	1	650	450	15	564	734	98.5	7.12	6.13
13	0	−1.68	0	650	550	20	579	672	92.6	8.08	5.78
14	−1	−1	1	650	550	20	601	745	96.5	7.34	6.84
15	0	0	0	650	550	20	629	771	102.3	6.09	7.15
16	1	1	1	650	650	10	561	628	86.7	8.47	5.00
17	0	0	1.68	650	650	10	582	665	91.2	7.12	5.66
18	−1	1	−1	650	650	10	618	692	93.2	6.83	6.16
19	1	−1	−1	750	450	20	524	600	84.5	8.17	4.24
20	0	0	0	750	450	20	531	657	86.8	6.94	4.87