Research Article
Statistical Modeling and Optimization of Laser Cladding Stellite 6/WC Composite Coating
Table 5
Variance analysis of the porosity area of the cladding layer.
| Source | Sum of squares | df | Mean square | F | | |
| Model | 2.684 × | 14 | 1.917 × | 3.9100 | 0.0078 | Significant | LP | 4.653 × | 1 | 4.653 × | 9.4800 | 0.0082 | | V | 2.574 × | 1 | 2.574 × | 0.5244 | 0.4809 | | CSD | 8.618 × | 1 | 8.618 × | 17.5600 | 0.0009 | | WCC | 2.077 × | 1 | 2.077 × | 4.2300 | 0.0588 | | V × WCC | 7.483 × | 1 | 7.483 × | 15.2500 | 0.0016 | | Residual | 6.871 × | 14 | 4.908 × | | | | Lack of fit | 4.868 × | 10 | 4.868 × | 0.9725 | 0.5612 | Not significant | Pure error | 2.002 × | 4 | 5.006 × | | | | Correlation total | 3.371 × | 28 | | | | | R2 | 0.7962 | | | Adeq Precision | 7.0809 | |
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