Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel
•DSC coatings offered better hot corrosion resistance than the APS coatings.•NiCr composition provides excellent corrosion resistance under molten salt enviorment.•Chromia and spinel oxides resisted hot corrosion ingress in coatings.•Lack of SO2 caused lower stability of Alkali iron trisulphates and...
Gespeichert in:
| Veröffentlicht in: | Corrosion science 2021-08, Vol.189, p.109556, Article 109556 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | 109556 |
| container_title | Corrosion science |
| container_volume | 189 |
| creator | C., Sundaresan B., Rajasekaran S., Varalakshmi K., Santhy Rao, D. Srinivasa G., Sivakumar |
| description | •DSC coatings offered better hot corrosion resistance than the APS coatings.•NiCr composition provides excellent corrosion resistance under molten salt enviorment.•Chromia and spinel oxides resisted hot corrosion ingress in coatings.•Lack of SO2 caused lower stability of Alkali iron trisulphates and primarily oxidation attack.•DFT analysis performed to validate the thermodynamic stability of oxides formed.
Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, and NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot corrosion resistance of DSC coatings was found to be superior to their APS counterparts. Chromia and spinel oxides provided excellent corrosion resistance while no α-Al2O3 was observed. DSC NiCr and APS NiCoCrAlY offered the most and the least corrosion resistance, respectively. DFT calculation was performed to validate the thermodynamic stability of each oxide and identify the precise oxide formation. |
| doi_str_mv | 10.1016/j.corsci.2021.109556 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2561103483</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0010938X2100322X</els_id><sourcerecordid>2561103483</sourcerecordid><originalsourceid>FETCH-LOGICAL-c380t-f782bdf323ceb959cf5770b8dbe0871f088fc811f6baf4044fdeba76c4e34d473</originalsourceid><addsrcrecordid>eNp9kE1LxDAQhoMouH78Aw8Br3adtGmbXoSlfoKooIKeQppONMtuU5PuguCPN2v37CmT4Zl3mIeQEwZTBqw4n0-180HbaQopi60qz4sdMmGirBLgVbFLJgAMkioTb_vkIIQ5AKSxMyE_tVv2yqvBrpF-uoHGJO-CdR3t0Rvnl6rTSJ2hs6dnqrqWXuLgushHIvRefWNLa1f72eL9jD7YbflHxp-PeZHtPgKN_EvFaOPsAj0NA-LiiOwZtQh4vH0Pyev11Ut9m9w_3tzVs_tEZwKGxJQibVqTpZnGpsorbfKyhEa0DYIomQEhjBaMmaJRhgPnpsVGlYXmmPGWl9khOR1ze---VhgGOXcr38WVMs0LxiDjIosUHykdBQSPRvbeLpX_lgzkxrOcy9Gz3HiWo-c4djGOYbxgbdHLSGCU1lqPepCts_8H_AJ2VYjC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2561103483</pqid></control><display><type>article</type><title>Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel</title><source>Elsevier ScienceDirect Journals Complete</source><creator>C., Sundaresan ; B., Rajasekaran ; S., Varalakshmi ; K., Santhy ; Rao, D. Srinivasa ; G., Sivakumar</creator><creatorcontrib>C., Sundaresan ; B., Rajasekaran ; S., Varalakshmi ; K., Santhy ; Rao, D. Srinivasa ; G., Sivakumar</creatorcontrib><description>•DSC coatings offered better hot corrosion resistance than the APS coatings.•NiCr composition provides excellent corrosion resistance under molten salt enviorment.•Chromia and spinel oxides resisted hot corrosion ingress in coatings.•Lack of SO2 caused lower stability of Alkali iron trisulphates and primarily oxidation attack.•DFT analysis performed to validate the thermodynamic stability of oxides formed.
Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, and NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot corrosion resistance of DSC coatings was found to be superior to their APS counterparts. Chromia and spinel oxides provided excellent corrosion resistance while no α-Al2O3 was observed. DSC NiCr and APS NiCoCrAlY offered the most and the least corrosion resistance, respectively. DFT calculation was performed to validate the thermodynamic stability of each oxide and identify the precise oxide formation.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2021.109556</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>A. Cobalt ; A. Metal coatings ; A. Nickel ; Aluminum oxide ; B. SEM ; B. XRD ; C. Hot corrosion ; Chromium oxides ; Corrosion resistance ; Corrosion resistant steels ; Detonation ; Heat resistant steels ; Hot corrosion ; Martensitic stainless steels ; Potassium sulfate ; Protective coatings ; Salt deposits</subject><ispartof>Corrosion science, 2021-08, Vol.189, p.109556, Article 109556</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Aug 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-f782bdf323ceb959cf5770b8dbe0871f088fc811f6baf4044fdeba76c4e34d473</citedby><cites>FETCH-LOGICAL-c380t-f782bdf323ceb959cf5770b8dbe0871f088fc811f6baf4044fdeba76c4e34d473</cites><orcidid>0000-0002-7012-4434 ; 0000-0003-2418-760X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.corsci.2021.109556$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>C., Sundaresan</creatorcontrib><creatorcontrib>B., Rajasekaran</creatorcontrib><creatorcontrib>S., Varalakshmi</creatorcontrib><creatorcontrib>K., Santhy</creatorcontrib><creatorcontrib>Rao, D. Srinivasa</creatorcontrib><creatorcontrib>G., Sivakumar</creatorcontrib><title>Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel</title><title>Corrosion science</title><description>•DSC coatings offered better hot corrosion resistance than the APS coatings.•NiCr composition provides excellent corrosion resistance under molten salt enviorment.•Chromia and spinel oxides resisted hot corrosion ingress in coatings.•Lack of SO2 caused lower stability of Alkali iron trisulphates and primarily oxidation attack.•DFT analysis performed to validate the thermodynamic stability of oxides formed.
Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, and NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot corrosion resistance of DSC coatings was found to be superior to their APS counterparts. Chromia and spinel oxides provided excellent corrosion resistance while no α-Al2O3 was observed. DSC NiCr and APS NiCoCrAlY offered the most and the least corrosion resistance, respectively. DFT calculation was performed to validate the thermodynamic stability of each oxide and identify the precise oxide formation.</description><subject>A. Cobalt</subject><subject>A. Metal coatings</subject><subject>A. Nickel</subject><subject>Aluminum oxide</subject><subject>B. SEM</subject><subject>B. XRD</subject><subject>C. Hot corrosion</subject><subject>Chromium oxides</subject><subject>Corrosion resistance</subject><subject>Corrosion resistant steels</subject><subject>Detonation</subject><subject>Heat resistant steels</subject><subject>Hot corrosion</subject><subject>Martensitic stainless steels</subject><subject>Potassium sulfate</subject><subject>Protective coatings</subject><subject>Salt deposits</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouH78Aw8Br3adtGmbXoSlfoKooIKeQppONMtuU5PuguCPN2v37CmT4Zl3mIeQEwZTBqw4n0-180HbaQopi60qz4sdMmGirBLgVbFLJgAMkioTb_vkIIQ5AKSxMyE_tVv2yqvBrpF-uoHGJO-CdR3t0Rvnl6rTSJ2hs6dnqrqWXuLgushHIvRefWNLa1f72eL9jD7YbflHxp-PeZHtPgKN_EvFaOPsAj0NA-LiiOwZtQh4vH0Pyev11Ut9m9w_3tzVs_tEZwKGxJQibVqTpZnGpsorbfKyhEa0DYIomQEhjBaMmaJRhgPnpsVGlYXmmPGWl9khOR1ze---VhgGOXcr38WVMs0LxiDjIosUHykdBQSPRvbeLpX_lgzkxrOcy9Gz3HiWo-c4djGOYbxgbdHLSGCU1lqPepCts_8H_AJ2VYjC</recordid><startdate>20210815</startdate><enddate>20210815</enddate><creator>C., Sundaresan</creator><creator>B., Rajasekaran</creator><creator>S., Varalakshmi</creator><creator>K., Santhy</creator><creator>Rao, D. Srinivasa</creator><creator>G., Sivakumar</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-7012-4434</orcidid><orcidid>https://orcid.org/0000-0003-2418-760X</orcidid></search><sort><creationdate>20210815</creationdate><title>Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel</title><author>C., Sundaresan ; B., Rajasekaran ; S., Varalakshmi ; K., Santhy ; Rao, D. Srinivasa ; G., Sivakumar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-f782bdf323ceb959cf5770b8dbe0871f088fc811f6baf4044fdeba76c4e34d473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>A. Cobalt</topic><topic>A. Metal coatings</topic><topic>A. Nickel</topic><topic>Aluminum oxide</topic><topic>B. SEM</topic><topic>B. XRD</topic><topic>C. Hot corrosion</topic><topic>Chromium oxides</topic><topic>Corrosion resistance</topic><topic>Corrosion resistant steels</topic><topic>Detonation</topic><topic>Heat resistant steels</topic><topic>Hot corrosion</topic><topic>Martensitic stainless steels</topic><topic>Potassium sulfate</topic><topic>Protective coatings</topic><topic>Salt deposits</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>C., Sundaresan</creatorcontrib><creatorcontrib>B., Rajasekaran</creatorcontrib><creatorcontrib>S., Varalakshmi</creatorcontrib><creatorcontrib>K., Santhy</creatorcontrib><creatorcontrib>Rao, D. Srinivasa</creatorcontrib><creatorcontrib>G., Sivakumar</creatorcontrib><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>C., Sundaresan</au><au>B., Rajasekaran</au><au>S., Varalakshmi</au><au>K., Santhy</au><au>Rao, D. Srinivasa</au><au>G., Sivakumar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel</atitle><jtitle>Corrosion science</jtitle><date>2021-08-15</date><risdate>2021</risdate><volume>189</volume><spage>109556</spage><pages>109556-</pages><artnum>109556</artnum><issn>0010-938X</issn><eissn>1879-0496</eissn><abstract>•DSC coatings offered better hot corrosion resistance than the APS coatings.•NiCr composition provides excellent corrosion resistance under molten salt enviorment.•Chromia and spinel oxides resisted hot corrosion ingress in coatings.•Lack of SO2 caused lower stability of Alkali iron trisulphates and primarily oxidation attack.•DFT analysis performed to validate the thermodynamic stability of oxides formed.
Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, and NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot corrosion resistance of DSC coatings was found to be superior to their APS counterparts. Chromia and spinel oxides provided excellent corrosion resistance while no α-Al2O3 was observed. DSC NiCr and APS NiCoCrAlY offered the most and the least corrosion resistance, respectively. DFT calculation was performed to validate the thermodynamic stability of each oxide and identify the precise oxide formation.</abstract><cop>Amsterdam</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2021.109556</doi><orcidid>https://orcid.org/0000-0002-7012-4434</orcidid><orcidid>https://orcid.org/0000-0003-2418-760X</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0010-938X |
| ispartof | Corrosion science, 2021-08, Vol.189, p.109556, Article 109556 |
| issn | 0010-938X 1879-0496 |
| language | eng |
| recordid | cdi_proquest_journals_2561103483 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Cobalt A. Metal coatings A. Nickel Aluminum oxide B. SEM B. XRD C. Hot corrosion Chromium oxides Corrosion resistance Corrosion resistant steels Detonation Heat resistant steels Hot corrosion Martensitic stainless steels Potassium sulfate Protective coatings Salt deposits |
| title | Comparative hot corrosion performance of APS and Detonation sprayed CoCrAlY, NiCoCrAlY and NiCr coatings on T91 boiler steel |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T09%3A36%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Comparative%20hot%20corrosion%20performance%20of%20APS%20and%20Detonation%20sprayed%20CoCrAlY,%20NiCoCrAlY%20and%20NiCr%20coatings%20on%20T91%20boiler%20steel&rft.jtitle=Corrosion%20science&rft.au=C.,%20Sundaresan&rft.date=2021-08-15&rft.volume=189&rft.spage=109556&rft.pages=109556-&rft.artnum=109556&rft.issn=0010-938X&rft.eissn=1879-0496&rft_id=info:doi/10.1016/j.corsci.2021.109556&rft_dat=%3Cproquest_cross%3E2561103483%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2561103483&rft_id=info:pmid/&rft_els_id=S0010938X2100322X&rfr_iscdi=true |