Product Code: ICAL05_P508

Corrosion Properties of Thermally Sprayed In-Situ Laser Remelted Ni-Based Coatings
Authors:
Jyrki Suutala, Tampere University of Technology; Tampere Finland
Jari Tuominen, Tampere University of Technology; Tampere Pirkanmaa Finnland
Petri Vuoristo, Tampere University of Technology; Tampere Finland
Presented at ICALEO 2005

In the present study, surface engineering research related to thermally sprayed Ni-based corrosion resistant coatings modified by in-situ and post treatment by novel high power lasers (Nd:YAG and diode lasers) has been carried out. The main aim of the study was to create experimental based information and knowledge on simultaneous remelting of thermally sprayed (plasma, HVOF, flame) layers for production of metallurgically bonded, dense corrosion resistant coatings on surfaces of steels and cast irons. The two main focuses of research were to evaluate the needed processing parameters, which enable simultaneous laser assisted thermal spraying and to investigate the corrosion resistance of the obtained coatings in comparison with laser remelted and thermally sprayed coatings.