Research Article
Optimization of Electroless Ni-P-W Coatings for Minimum Friction and Wear Using Grey-Taguchi Method
Table 1
Electroless bath composition and operating condition.
| | Bath constituents | Values | Operating condition | Values |
| | Nickel sulphate (g/L) | 20 | pH | 7-8 | | Sodium hypophosphite (g/L) | 20 | | Sodium citrate (g/L) | 35 | Temperature | 90 ± 2°C | | Ammonium sulphate (g/L) | 30 | Duration of coating | 3 h | | Lactic acid (g/L) | 5 | | Sodium tungstate (g/L) | 15 | Bath volume (mL) | 200 |
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