|
3996 |
|
Thermal spray of Ni-based composites using a low power plasma gun |
|
Álvaro Rico* / Rey Juan Carlos University, Spain M. E. Escobar / DIMME. Durability and Mechanical Integrity of Structural Materials. Rey Juan Carlos University, Spain D. Verdi/ DIMME. Durability and Mechanical Integrity of Structural Materials. Rey Juan Carlos University, Spain C. J. Múnez/ DIMME. Durability and Mechanical Integrity of Structural Materials. Rey Juan Carlos University, Spain P. Poza/ DIMME. Durability and Mechanical Integrity of Structural Materials. Rey Juan Carlos University, Spain |
|
Reparation of thermal spray coated components is complex due to the difficulties associated to the transportation and installation of conventional plasma equipment in the working zone of the damaged component. Portable plasma systems could be a good solution to this issue. However, weight and size requirements are extremely demanding topics for this application. As a consequence, the available power for this kind of plasma guns is lower than that of the conventional torches. A simple question arise from the previous considerations: Is it possible to deposit materials with high melting temperatures? In this work a preliminary study about the deposition of Ni-based ceramic composites using a low power plasma gun is proposed. Microstructure and mechanical properties of the coatings are measured. Advantages and limitations of this kind of plasma torches are also discussed. |