Research Article
Investigation in Gas Carburizing of AISI 4140, EN36, and 16MnCr5 Steels Using the Grey Incidence-Based Taguchi (GIBT) Method
Table 1
Levels of carburizing factors.
| | Symbol | Factors | Level 1 | Level 2 | Level 3 |
| | A | Substrate material | EN36 | 16MnCr5 | AISI 4140 | | B | Carburizing temperature (°C) | 860 | 900 | 940 | | C | Soaking time (h) | 4 | 5 | 6 | | D | Tempering temperature (°C) | 220 | 250 | 280 |
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