Comparative studies on the hot corrosion behavior of air plasma spray and high velocity oxygen fuel coated Co-based L605 superalloys in a gas turbine environment
An improvement in the corrosion resistance of alloys at elevated temperature is a factor for their potential use in gas turbines. In this study, CoNiCrAlY has been coated on the L605 alloy using air plasma spray (APS) and high-velocity oxygen fuel (HVOF) coating techniques to enhance its corrosion r...
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| Veröffentlicht in: | International journal of minerals, metallurgy and materials metallurgy and materials, 2020-05, Vol.27 (5), p.649-659 |
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| creator | Jithesh, Kuzhipadath Arivarasu, Moganraj |
| description | An improvement in the corrosion resistance of alloys at elevated temperature is a factor for their potential use in gas turbines. In this study, CoNiCrAlY has been coated on the L605 alloy using air plasma spray (APS) and high-velocity oxygen fuel (HVOF) coating techniques to enhance its corrosion resistance. Hot corrosion studies were conducted on uncoated and coated samples in a molten salt environment at 850°C under cyclic conditions. Thermogravimetric analysis was used to determine the corrosion kinetics. The samples were subjected to scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction for further investigation. In coated samples, the formation of Al
2
O
3
and Cr
2
O
3
in the coating acts as a diffusion barrier that could resists the inward movement of the corrosive species present in the molten salt. Coated samples showed very less spallation, lower weight gain, less porosity, and internal oxidation as compared to uncoated sample. HVOF-coated sample showed greater corrosion resistance and inferred that this is the best technique under these conditions. |
| doi_str_mv | 10.1007/s12613-019-1943-1 |
| format | Article |
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2
O
3
and Cr
2
O
3
in the coating acts as a diffusion barrier that could resists the inward movement of the corrosive species present in the molten salt. Coated samples showed very less spallation, lower weight gain, less porosity, and internal oxidation as compared to uncoated sample. HVOF-coated sample showed greater corrosion resistance and inferred that this is the best technique under these conditions.</description><identifier>ISSN: 1674-4799</identifier><identifier>EISSN: 1869-103X</identifier><identifier>DOI: 10.1007/s12613-019-1943-1</identifier><language>eng</language><publisher>Beijing: University of Science and Technology Beijing</publisher><subject>Air plasma ; Aluminum oxide ; Ceramics ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Comparative studies ; Composites ; Corrosion ; Corrosion and Coatings ; Corrosion resistance ; Corrosion resistant alloys ; Diffusion barriers ; Diffusion coating ; Fuels ; Gas turbines ; Glass ; High temperature ; Hot corrosion ; Internal oxidation ; Materials Science ; Metallic Materials ; Molten salts ; Natural Materials ; Oxygen ; Porosity ; Protective coatings ; Reaction kinetics ; Spallation ; Superalloys ; Surfaces and Interfaces ; Thermogravimetric analysis ; Thin Films ; Tribology ; X-ray diffraction</subject><ispartof>International journal of minerals, metallurgy and materials, 2020-05, Vol.27 (5), p.649-659</ispartof><rights>University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2020</rights><rights>University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-993b3cde493efac99cf9591b1b65f0751cf6c997f6fa860cc6b94812d3fba98c3</citedby><cites>FETCH-LOGICAL-c316t-993b3cde493efac99cf9591b1b65f0751cf6c997f6fa860cc6b94812d3fba98c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12613-019-1943-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2920566228?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>315,781,785,21389,27925,27926,33745,41489,42558,43806,51320,64386,64390,72470</link.rule.ids></links><search><creatorcontrib>Jithesh, Kuzhipadath</creatorcontrib><creatorcontrib>Arivarasu, Moganraj</creatorcontrib><title>Comparative studies on the hot corrosion behavior of air plasma spray and high velocity oxygen fuel coated Co-based L605 superalloys in a gas turbine environment</title><title>International journal of minerals, metallurgy and materials</title><addtitle>Int J Miner Metall Mater</addtitle><description>An improvement in the corrosion resistance of alloys at elevated temperature is a factor for their potential use in gas turbines. In this study, CoNiCrAlY has been coated on the L605 alloy using air plasma spray (APS) and high-velocity oxygen fuel (HVOF) coating techniques to enhance its corrosion resistance. Hot corrosion studies were conducted on uncoated and coated samples in a molten salt environment at 850°C under cyclic conditions. Thermogravimetric analysis was used to determine the corrosion kinetics. The samples were subjected to scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction for further investigation. In coated samples, the formation of Al
2
O
3
and Cr
2
O
3
in the coating acts as a diffusion barrier that could resists the inward movement of the corrosive species present in the molten salt. Coated samples showed very less spallation, lower weight gain, less porosity, and internal oxidation as compared to uncoated sample. HVOF-coated sample showed greater corrosion resistance and inferred that this is the best technique under these conditions.</description><subject>Air plasma</subject><subject>Aluminum oxide</subject><subject>Ceramics</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Comparative studies</subject><subject>Composites</subject><subject>Corrosion</subject><subject>Corrosion and Coatings</subject><subject>Corrosion resistance</subject><subject>Corrosion resistant alloys</subject><subject>Diffusion barriers</subject><subject>Diffusion coating</subject><subject>Fuels</subject><subject>Gas turbines</subject><subject>Glass</subject><subject>High temperature</subject><subject>Hot corrosion</subject><subject>Internal oxidation</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Molten salts</subject><subject>Natural Materials</subject><subject>Oxygen</subject><subject>Porosity</subject><subject>Protective coatings</subject><subject>Reaction kinetics</subject><subject>Spallation</subject><subject>Superalloys</subject><subject>Surfaces and Interfaces</subject><subject>Thermogravimetric analysis</subject><subject>Thin Films</subject><subject>Tribology</subject><subject>X-ray diffraction</subject><issn>1674-4799</issn><issn>1869-103X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1UcuK3DAQNCELu9nsB-ytIWcnkmXL1jEMecFALgnkJtpya6zFIzmSPMSfkz-NlgnklFNXF1XV0FVVj5y95Yz17xJvJBc146rmqhU1f1Hd8UGWjYkfLwuWfVu3vVK31auUnhiTfc_6u-r3IZxXjJjdhSDlbXKUIHjIM8EcMpgQY0iuMCPNeHEhQrCALsK6YDojpDXiDugnmN1phgstwbi8Q_i1n8iD3WgpIZhpgkOoR0wFHCXrIG0rRVyWsCdwHhBOmCBvcXSegPzFxeDP5PPr6sbikujh77yvvn_88O3wuT5-_fTl8P5YG8FlrpUSozATtUqQRaOUsapTfOSj7CzrO26sLGxvpcVBMmPkqNqBN5OwI6rBiPvqzTV3jeHnRinrp7BFX07qRjWsk7JphqLiV5Upb0mRrF6jO2PcNWf6uQl9bUKXJvRzE5oXT3P1lF85f6L4L_n_pj-uz48I</recordid><startdate>20200501</startdate><enddate>20200501</enddate><creator>Jithesh, Kuzhipadath</creator><creator>Arivarasu, Moganraj</creator><general>University of Science and Technology Beijing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20200501</creationdate><title>Comparative studies on the hot corrosion behavior of air plasma spray and high velocity oxygen fuel coated Co-based L605 superalloys in a gas turbine environment</title><author>Jithesh, Kuzhipadath ; Arivarasu, Moganraj</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-993b3cde493efac99cf9591b1b65f0751cf6c997f6fa860cc6b94812d3fba98c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Air plasma</topic><topic>Aluminum oxide</topic><topic>Ceramics</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Comparative studies</topic><topic>Composites</topic><topic>Corrosion</topic><topic>Corrosion and Coatings</topic><topic>Corrosion resistance</topic><topic>Corrosion resistant alloys</topic><topic>Diffusion barriers</topic><topic>Diffusion coating</topic><topic>Fuels</topic><topic>Gas turbines</topic><topic>Glass</topic><topic>High temperature</topic><topic>Hot corrosion</topic><topic>Internal oxidation</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Molten salts</topic><topic>Natural Materials</topic><topic>Oxygen</topic><topic>Porosity</topic><topic>Protective coatings</topic><topic>Reaction kinetics</topic><topic>Spallation</topic><topic>Superalloys</topic><topic>Surfaces and Interfaces</topic><topic>Thermogravimetric analysis</topic><topic>Thin Films</topic><topic>Tribology</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jithesh, Kuzhipadath</creatorcontrib><creatorcontrib>Arivarasu, Moganraj</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>International journal of minerals, metallurgy and materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jithesh, Kuzhipadath</au><au>Arivarasu, Moganraj</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative studies on the hot corrosion behavior of air plasma spray and high velocity oxygen fuel coated Co-based L605 superalloys in a gas turbine environment</atitle><jtitle>International journal of minerals, metallurgy and materials</jtitle><stitle>Int J Miner Metall Mater</stitle><date>2020-05-01</date><risdate>2020</risdate><volume>27</volume><issue>5</issue><spage>649</spage><epage>659</epage><pages>649-659</pages><issn>1674-4799</issn><eissn>1869-103X</eissn><abstract>An improvement in the corrosion resistance of alloys at elevated temperature is a factor for their potential use in gas turbines. In this study, CoNiCrAlY has been coated on the L605 alloy using air plasma spray (APS) and high-velocity oxygen fuel (HVOF) coating techniques to enhance its corrosion resistance. Hot corrosion studies were conducted on uncoated and coated samples in a molten salt environment at 850°C under cyclic conditions. Thermogravimetric analysis was used to determine the corrosion kinetics. The samples were subjected to scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction for further investigation. In coated samples, the formation of Al
2
O
3
and Cr
2
O
3
in the coating acts as a diffusion barrier that could resists the inward movement of the corrosive species present in the molten salt. Coated samples showed very less spallation, lower weight gain, less porosity, and internal oxidation as compared to uncoated sample. HVOF-coated sample showed greater corrosion resistance and inferred that this is the best technique under these conditions.</abstract><cop>Beijing</cop><pub>University of Science and Technology Beijing</pub><doi>10.1007/s12613-019-1943-1</doi><tpages>11</tpages></addata></record> |
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| subjects | Air plasma Aluminum oxide Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Comparative studies Composites Corrosion Corrosion and Coatings Corrosion resistance Corrosion resistant alloys Diffusion barriers Diffusion coating Fuels Gas turbines Glass High temperature Hot corrosion Internal oxidation Materials Science Metallic Materials Molten salts Natural Materials Oxygen Porosity Protective coatings Reaction kinetics Spallation Superalloys Surfaces and Interfaces Thermogravimetric analysis Thin Films Tribology X-ray diffraction |
| title | Comparative studies on the hot corrosion behavior of air plasma spray and high velocity oxygen fuel coated Co-based L605 superalloys in a gas turbine environment |
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