Optimization and Mechanical Characteristics of AA6061/Zirconia Nanocomposites Fabricated by Ultrasonic-Aided Stir Casting Method

Table 3

Orthogonal arrangement and experimental outcome on Taguchi L₁₆.

Exp. no.	Processing factors					Hardness (VHN)		Ultimate tensile strength (MPa)		Elongation (%)		Grain size
	A (watt)	B (min)	C (°C)	D (MPa)	E (wt%)	R1	R2	R1	R2	R1	R2	R1	R2
1	1750	5	750	100	2	124	124	245	226	6.4	6.3	197	197
2	1750	10	800	150	3	126	127	247	268	4.7	6.8	176	174
3	1750	15	850	200	4	127	125	278	274	3.7	6.0	162	166
4	1750	20	900	250	5	122	116	228	234	4.1	3.1	222	208
5	2000	5	800	100	2	128	135	257	274	4.9	4.9	180	176
6	2000	10	850	150	3	137	136	311	291	6.9	6.5	147	139
7	2000	15	900	200	4	134	134	294	304	7.2	6.9	149	150
8	2000	20	750	250	5	128	126	296	272	8.1	10.3	165	169
9	2250	5	800	150	2	138	144	302	331	7.5	7.9	125	127
10	2250	10	850	100	3	132	129	297	301	9.9	9.0	146	142
11	2250	15	900	250	4	144	142	291	305	6.9	6.7	126	128
12	2250	20	750	200	5	138	137	321	314	6.8	7.5	130	130
13	2500	5	850	100	3	146	141	321	334	7.1	9.1	90	90
14	2500	10	800	150	4	140	139	301	273	7.2	7.4	116	112
15	2500	15	900	200	2	143	137	312	337	10.5	11.9	70	64
16	2500	20	750	250	5	149	149	336	340	10.6	10.7	45	41