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

Table 5

Responses from predicted optimal setting and initial setting of parameters.

Responses	Initial factor setting	Optimal factor setting	Improvement
Surface hardness-SH (HV)	605	622	17
Diffusion Depth-DD (µm)	60	72	12
Wear loss-WL (mm)	0.0197	0.0182	0.0015
Factor setting	A3 B1 C3 D2	A3 B1 C2 D2