Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding
As a surface coating technique, laser cladding (LC) has been developed for improving wear, corrosion, and fatigue properties of mechanical components. The main advantage of this process is the capability of introducing hard particles such as SiC, TiC, and WC as reinforcements in the metallic matrix...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/615464 |
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| author | Andrea Angelastro Sabina L. Campanelli Giuseppe Casalino Antonio D. Ludovico |
| author_facet | Andrea Angelastro Sabina L. Campanelli Giuseppe Casalino Antonio D. Ludovico |
| author_sort | Andrea Angelastro |
| collection | DOAJ |
| description | As a surface coating technique, laser cladding (LC) has been developed for improving wear, corrosion, and fatigue properties of mechanical components. The main advantage of this process is the capability of introducing hard particles such as SiC, TiC, and WC as reinforcements in the metallic matrix such as Ni-based alloy, Co-based alloy, and Fe-based alloy to form ceramic-metal composite coatings, which have very high hardness and good wear resistance. In this paper, Ni-based alloy (Colmonoy 227-F) and Tungsten Carbides/Cobalt/Chromium (WC/Co/Cr) composite coatings were fabricated by the multilayer laser cladding technique (MLC). An optimization procedure was implemented to obtain the combination of process parameters that minimizes the porosity and produces good adhesion to a stainless steel substrate. The optimization procedure was worked out with a mathematical model that was supported by an experimental analysis, which studied the shape of the clad track generated by melting coaxially fed powders with a laser. Microstructural and microhardness analysis completed the set of test performed on the coatings. |
| format | Article |
| id | doaj-art-222a9711b9bc448fa2533e31d4461592 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-222a9711b9bc448fa2533e31d44615922025-02-03T01:11:59ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/615464615464Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser CladdingAndrea Angelastro0Sabina L. Campanelli1Giuseppe Casalino2Antonio D. Ludovico3Department of Mechanics, Mathematics and Management, Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, ItalyDepartment of Mechanics, Mathematics and Management, Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, ItalyDepartment of Mechanics, Mathematics and Management, Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, ItalyDepartment of Mechanics, Mathematics and Management, Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, ItalyAs a surface coating technique, laser cladding (LC) has been developed for improving wear, corrosion, and fatigue properties of mechanical components. The main advantage of this process is the capability of introducing hard particles such as SiC, TiC, and WC as reinforcements in the metallic matrix such as Ni-based alloy, Co-based alloy, and Fe-based alloy to form ceramic-metal composite coatings, which have very high hardness and good wear resistance. In this paper, Ni-based alloy (Colmonoy 227-F) and Tungsten Carbides/Cobalt/Chromium (WC/Co/Cr) composite coatings were fabricated by the multilayer laser cladding technique (MLC). An optimization procedure was implemented to obtain the combination of process parameters that minimizes the porosity and produces good adhesion to a stainless steel substrate. The optimization procedure was worked out with a mathematical model that was supported by an experimental analysis, which studied the shape of the clad track generated by melting coaxially fed powders with a laser. Microstructural and microhardness analysis completed the set of test performed on the coatings.http://dx.doi.org/10.1155/2013/615464 |
| spellingShingle | Andrea Angelastro Sabina L. Campanelli Giuseppe Casalino Antonio D. Ludovico Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding Advances in Materials Science and Engineering |
| title | Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding |
| title_full | Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding |
| title_fullStr | Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding |
| title_full_unstemmed | Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding |
| title_short | Optimization of Ni-Based WC/Co/Cr Composite Coatings Produced by Multilayer Laser Cladding |
| title_sort | optimization of ni based wc co cr composite coatings produced by multilayer laser cladding |
| url | http://dx.doi.org/10.1155/2013/615464 |
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