The GMAW process using two wires is an alternative to a coating process when high productivity is desired. The potential variants emerging from this process are GMAW cold wire and GMAW double wire. One of the greatest difficulties is the setting of its parameters, which duplication compared to conventional GMAW and also act in a dependent manner. A greater understanding of the technology applied to coatings on turbines in various positions is critical to master the process and its variables for enhancing industrial applications. This study involves an experimental evaluation to verify the influence of some variables on the profile of cord and wear resistance. This paper proposes making deposits with weld metal AWS 308LSi stainless steel and alloys of cobalt (Stellite 6 and 21) plates in carbon steel SAE 1020 in the flat positions. The wear characterization in the lining is used to determine the hardness and surface topography. It is concluded that cobalt alloys have superior resistance to erosive damage, with emphasis on Stellite 21 with respect to erosion and Stellite 6 with respect to cavitation. Mixtures of austenitic stainless steel and cobalt alloys have intermediate wear values. Therefore, it is essential to study welding processes with multiple wires, as proposed in this paper, to determine the optimal combination of alloys for resistance to cavitation-erosion phenomena.
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ASME 2017 International Mechanical Engineering Congress and Exposition
November 3–9, 2017
Tampa, Florida, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5849-3
PROCEEDINGS PAPER
Operational Aspects of Coatings Welds: Erosive Wear and Cavitation Available to Purchase
Hebert Roberto da Silva,
Hebert Roberto da Silva
Federal University of Goias, Goiás, Brazil
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Valtair Antonio Ferraresi,
Valtair Antonio Ferraresi
Federal University of Uberlândia, Uberlândia, Brazil
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Rosenda Valdes Arencibia
Rosenda Valdes Arencibia
Federal University of Uberlândia, Uberlândia, Brazil
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Hebert Roberto da Silva
Federal University of Goias, Goiás, Brazil
Valtair Antonio Ferraresi
Federal University of Uberlândia, Uberlândia, Brazil
Rosenda Valdes Arencibia
Federal University of Uberlândia, Uberlândia, Brazil
Paper No:
IMECE2017-70169, V014T11A011; 10 pages
Published Online:
January 10, 2018
Citation
da Silva, HR, Ferraresi, VA, & Arencibia, RV. "Operational Aspects of Coatings Welds: Erosive Wear and Cavitation." Proceedings of the ASME 2017 International Mechanical Engineering Congress and Exposition. Volume 14: Emerging Technologies; Materials: Genetics to Structures; Safety Engineering and Risk Analysis. Tampa, Florida, USA. November 3–9, 2017. V014T11A011. ASME. https://doi.org/10.1115/IMECE2017-70169
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