3-D profilometries of vacuum plasma sprayed nickel-based alloy splats using scanning mechanical microscopy
- LERMPS, Belfort (France)
The relationships between processing parameters and deposit microstructures are not well understood due to the numerous parameters managing the thermal spray process and to the random deposition mode of the material. These interactions are directly related to the impact and spreading of the material droplets onto the substrate or previously deposited layers. Thicknesses of splats of a vacuum plasma sprayed (VPS) nickel based alloy (e.g., Astroloy) were determined by experimental measurements using a Scanning Mechanical Microscope (SMM). 3-D profiles of splats sprayed with different processing parameters were collected and showed that splats produced with a 90{degree} spray angle exhibit a near constant thickness along a random cross-section, while splats produced with an off-normal spray angle exhibit a thickness evolution following the impact direction. In the case of a normal spray angle, the splat thickness is a function of (1) the initial particle diameters; (2) the spray parameter set.
- OSTI ID:
- 377772
- Report Number(s):
- CONF-9509182-; ISBN 0-87170-541-9; TRN: IM9643%%45
- Resource Relation:
- Conference: 1995 National thermal spray conference, Houston, TX (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Advances in thermal spray science and technology. Proceedings of the 8. national thermal spray conference; Berndt, C.C.; Sampath, S. [eds.]; PB: 795 p.
- Country of Publication:
- United States
- Language:
- English
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