Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings
In order to protect industrial components, cobalt base alloys are applied as hardfacing material through welding techniques. A large number of papers have shown that controlling the chemical composition is a key point regarding the wear and corrosion resistance of coatings. This paper investigated the effect of bead overlapping on the microstructure and properties of CoCrWC alloy coatings. Mechanical properties were determined by hardness, sliding wear and microtensile tests. Bead overlapping reduces dilution during the previous bead melting, which in turn induces lower iron content. From the second bead on, an increase in the amount of interdendritic carbides and solid solution alloying was verified, accounting for the higher mechanical properties of the coatings.
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ABM, ABC, ABPol
2018
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oai:scielo:S1516-143920180006002192018-09-12Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy CoatingsPaes,Rodrigo Metz GabrielMartinazzi,DouglasFalcade,TiagoScheid,Adriano Cobalt-based Alloy Coatings Microstructure Hardness Bead Overlapping (BO) Deposition Current In order to protect industrial components, cobalt base alloys are applied as hardfacing material through welding techniques. A large number of papers have shown that controlling the chemical composition is a key point regarding the wear and corrosion resistance of coatings. This paper investigated the effect of bead overlapping on the microstructure and properties of CoCrWC alloy coatings. Mechanical properties were determined by hardness, sliding wear and microtensile tests. Bead overlapping reduces dilution during the previous bead melting, which in turn induces lower iron content. From the second bead on, an increase in the amount of interdendritic carbides and solid solution alloying was verified, accounting for the higher mechanical properties of the coatings.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.21 n.6 20182018-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600219en10.1590/1980-5373-mr-2018-0274 |
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Paes,Rodrigo Metz Gabriel Martinazzi,Douglas Falcade,Tiago Scheid,Adriano |
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Paes,Rodrigo Metz Gabriel Martinazzi,Douglas Falcade,Tiago Scheid,Adriano Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| author_facet |
Paes,Rodrigo Metz Gabriel Martinazzi,Douglas Falcade,Tiago Scheid,Adriano |
| author_sort |
Paes,Rodrigo Metz Gabriel |
| title |
Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| title_short |
Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| title_full |
Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| title_fullStr |
Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| title_full_unstemmed |
Effect of Bead Overlapping on the Microstructure and Mechanical Properties of CoCrWC Alloy Coatings |
| title_sort |
effect of bead overlapping on the microstructure and mechanical properties of cocrwc alloy coatings |
| description |
In order to protect industrial components, cobalt base alloys are applied as hardfacing material through welding techniques. A large number of papers have shown that controlling the chemical composition is a key point regarding the wear and corrosion resistance of coatings. This paper investigated the effect of bead overlapping on the microstructure and properties of CoCrWC alloy coatings. Mechanical properties were determined by hardness, sliding wear and microtensile tests. Bead overlapping reduces dilution during the previous bead melting, which in turn induces lower iron content. From the second bead on, an increase in the amount of interdendritic carbides and solid solution alloying was verified, accounting for the higher mechanical properties of the coatings. |
| publisher |
ABM, ABC, ABPol |
| publishDate |
2018 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000600219 |
| work_keys_str_mv |
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1756420802251587584 |