Research Article
Optimization of Conversion Treatment on Austenitic Stainless Steel Using Experimental Designs
Table 2
Factors and their levels for the experiments.
| H2SO4 % | (°C) | Na2S2O3, 5H2O | C3H4O % | Treatment time (min) | Surface state | | | g/L | | | |
| −1 | +1 | −1 | +1 | −1 | +1 | −1 | +1 | −1 | +1 | −1 | +1 | 0.2 | 2 | 40 | 70 | 0.5 | 1.5 | 0 | 0.25 | 10 | 30 | Sanded | Microball |
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