Table 1.
Levels of tested parameters.
| Level | Tested Parameter | |||
|---|---|---|---|---|
| Ni-Graphite Powder in the Blend, wt.% (A) |
Gas Composition (B) |
Spraying Distance, mm (C) |
Traverse Speed of the Gun, mm/s (D) |
|
| 1 | 5 | N2 | 20 | 200 |
| 2 | 10 | N2 + He | 30 | 300 |
| 3 | 15 | He | 40 | 400 |
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