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| Abstract No.: |
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Scheduled at:
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Thursday, May 05, 2022, Hall G1 10:00 AM
HVOF/HVAF Spraying II
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| Title: |
Nitriding effect on HVAF FeMnCrSi coating
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| Authors: |
Anderson Pukasiewicz* / Universidade Tecnológica Federal do Paraná, Brazil
Willian Rafael de Oliveira / UTFPR Ponta Grossa Campus, Brasil
Luciana Leite Silveira/ PUC Parana, Brasil
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| Abstract: |
Thermochemical processes is an appropriate way to improve the surface hardening of the material against wear. Thermal spraying is a group of deposition processes that can deposit different classes of materials. The use of thermomechanical process after metallic coatings deposition can result in a unique combination of bulk and surface properties. There are some studies that indicate the defects and stresses caused in the crystal lattice as one of the factors that most influence nitrogen diffusion during the nitriding process. The HVAF (High Velocity Air-Fuel) process can generate different fault conditions and stress-strain in the crystal lattice. The aim of this work is study the effect of the plasma nitriding (PN) on FeMnCrSi coating deposited with HVAF process. Initially, it was observed the formation of expanded austenite and CrN on the HVAF coating, followed by important increase on the hardness of the coating. Ball on disc and cavitation resistance are currently in analysis.
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