Investigation in Gas Carburizing of AISI 4140, EN36, and 16MnCr5 Steels Using the Grey Incidence-Based Taguchi (GIBT) Method

Table 2

Trials and responses.

Trials	Control parameter levels				Responses
	A (substrate)	B (°C)	C (h)	D (°C)	SH (HV)		DD (μm)		WL (gm)
1	EN36	860	4	220	580	581	59	57	0.0217	0.0217
2	EN36	900	5	250	584	583	62	62	0.0219	0.0221
3	EN36	940	6	280	575	574	55	59	0.0199	0.0198
4	16MnCr5	860	5	280	586	584	62	60	0.0196	0.0195
5	16MnCr5	900	6	220	582	580	67	68	0.0238	0.0237
6	16MnCr5	940	4	250	572	570	62	61	0.0221	0.0220
7	AISI 4140	860	6	250	602	603	60	59	0.0198	0.0196
8	AISI 4140	900	4	280	586	583	54	55	0.0195	0.0193
9	AISI 4140	940	5	220	591	589	62	64	0.0209	0.0211