Parametric Optimization of Squeeze Cast AC2A-Ni Coated SiC_p Composite Using Taguchi Technique

Table 3

Design of experiments using L₁₆(4⁵) array.

Ex no.	Parametric setting	Hardness (BHN)				Ultimate tensile strength (MPa)				𝑆/𝑁 ratio for hardness	𝑆/𝑁 ratio for ultimate tensile strength
		R1	R2	R3	R4	R1	R2	R3	R4	(dB)	(dB)
1	𝐴1𝐵1𝐶1𝐷1𝐸1	91	87	91	90	259	248	259	256	39.0562	48.1437
2	𝐴1𝐵2𝐶2𝐷2𝐸2	110	104	108	107	313	296	308	305	40.6026	49.6948
3	𝐴1𝐵3𝐶3𝐷3𝐸3	124	118	123	122	350	333	347	344	41.7047	50.7139
4	𝐴1𝐵4𝐶4𝐷4𝐸4	112	106	111	110	319	302	316	313	40.8023	49.8914
5	𝐴2𝐵1𝐶2𝐷3𝐸4	117	111	115	116	333	316	328	330	41.1898	50.2791
6	𝐴2𝐵2𝐶1𝐷4𝐸3	115	109	113	112	328	310	322	319	40.9988	50.0908
7	𝐴2𝐵3𝐶4𝐷1𝐸2	127	121	126	125	362	345	359	356	41.9164	51.0125
8	𝐴2𝐵4𝐶3𝐷2𝐸1	128	122	126	124	365	347	359	353	41.934	51.0244
9	𝐴3𝐵1𝐶3𝐷4𝐸2	140	134	138	137	399	382	393	390	42.747	51.8403
10	𝐴3𝐵2𝐶4𝐷3𝐸1	121	116	121	120	345	330	345	342	41.5434	50.6379
11	𝐴3𝐵3𝐶1𝐷2𝐸4	120	114	117	120	342	325	333	342	41.4133	50.508
12	𝐴3𝐵4𝐶2𝐷1𝐸3	127	121	126	125	362	345	359	356	41.9164	51.0125
13	𝐴4𝐵1𝐶4𝐷2𝐸3	138	133	138	136	393	379	393	387	42.6837	51.7737
14	𝐴4𝐵2𝐶3𝐷1𝐸4	142	136	140	139	404	387	399	396	42.8727	51.9617
15	𝐴4𝐵3𝐶2𝐷4𝐸1	122	118	121	120	347	336	345	342	41.5997	50.6913
16	𝐴4𝐵4𝐶1𝐷3𝐸2	121	117	121	120	345	333	345	342	41.563	50.6587
Mean										𝑌ℎ=41.53	𝑌𝑡=50.62