RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel
The current work evaluates the effect of hot corrosion on ASTM-SA213-T-22 Steel with a coating of 100Al _2 O _3 and 20TiO _2 -Al _2 O _3 at 900 °C in the molten salt environment of (Na _2 SO _4 -60% V _2 O _5 ). The coatings were sprayed by plasma spray technique. The bare and coated samples were pl...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab6e7e |
| _version_ | 1827322683466973184 |
|---|---|
| author | Gurdeep Singh Santosh Kumar Rakesh Kumar |
| author_facet | Gurdeep Singh Santosh Kumar Rakesh Kumar |
| author_sort | Gurdeep Singh |
| collection | DOAJ |
| description | The current work evaluates the effect of hot corrosion on ASTM-SA213-T-22 Steel with a coating of 100Al _2 O _3 and 20TiO _2 -Al _2 O _3 at 900 °C in the molten salt environment of (Na _2 SO _4 -60% V _2 O _5 ). The coatings were sprayed by plasma spray technique. The bare and coated samples were placed inside the muffle furnace at 900 °C for 50 cycles. Each cycle consisted of heating for 1 h and 20 min of cooling at ambient temperature. The kinetics of hot corrosion was analyzed by measuring mass gain after each cycle. The results were achieved by using visual examination, mass change measurement, XRD and SEM/EDS analysis. The result revealed that bare steel was more affected with corrosion and gained more mass due to the development of iron oxide (Fe _2 O _3 ) than the coated sample. Fe _2 O _3 and Cr _2 O _3 were found as major phase in oxide scale of T-22 uncoated steel specimen. The 100Al _2 O _3 and 20TiO _2 -Al _2 O _3 coated specimen indicated the reduction in mass gain by 25.41% and 67.02% respectively as compared to uncoated specimen. Al _2 O _3 coating with the combination of TiO _2 showed better adhesion properties. The presence of TiO _2 enhanced the durability and strength of Al _2 O _3 coating to withstand high temperatures. |
| first_indexed | 2024-03-12T15:44:50Z |
| format | Article |
| id | doaj.art-2fd3ece55a044a30aa9b356c3275dd9a |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-04-25T01:32:02Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-2fd3ece55a044a30aa9b356c3275dd9a2024-03-08T12:00:05ZengIOP PublishingMaterials Research Express2053-15912020-01-017202652710.1088/2053-1591/ab6e7eRETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steelGurdeep Singh0Santosh Kumar1https://orcid.org/0000-0003-4414-3305Rakesh Kumar2https://orcid.org/0000-0002-7806-6208Research Scholar, Department of Mechanical Engineering, Punjabi University , Patiala, Punjab, IndiaPhD Research Scholar, Department of Mechanical Engineering, I.K.G. Punjab Technical University , Kapurthala, Punjab, India; Assistant Professor, Department of Mechanical Engineering, Chandigarh Group of Colleges, Landran, Mohali, Punjab, IndiaAssistant Professor, Department of Mechanical Engineering, Chandigarh Group of Colleges, Landran, Mohali, Punjab, India; PhD Research Scholar, Department of Mechanical Engineering, Chandigarh University , Gharuan, Mohali, Punjab, IndiaThe current work evaluates the effect of hot corrosion on ASTM-SA213-T-22 Steel with a coating of 100Al _2 O _3 and 20TiO _2 -Al _2 O _3 at 900 °C in the molten salt environment of (Na _2 SO _4 -60% V _2 O _5 ). The coatings were sprayed by plasma spray technique. The bare and coated samples were placed inside the muffle furnace at 900 °C for 50 cycles. Each cycle consisted of heating for 1 h and 20 min of cooling at ambient temperature. The kinetics of hot corrosion was analyzed by measuring mass gain after each cycle. The results were achieved by using visual examination, mass change measurement, XRD and SEM/EDS analysis. The result revealed that bare steel was more affected with corrosion and gained more mass due to the development of iron oxide (Fe _2 O _3 ) than the coated sample. Fe _2 O _3 and Cr _2 O _3 were found as major phase in oxide scale of T-22 uncoated steel specimen. The 100Al _2 O _3 and 20TiO _2 -Al _2 O _3 coated specimen indicated the reduction in mass gain by 25.41% and 67.02% respectively as compared to uncoated specimen. Al _2 O _3 coating with the combination of TiO _2 showed better adhesion properties. The presence of TiO _2 enhanced the durability and strength of Al _2 O _3 coating to withstand high temperatures.https://doi.org/10.1088/2053-1591/ab6e7ehot corrosionboiler steelplasma spray100Al2O3 and 20TiO2-Al2O3 coatings |
| spellingShingle | Gurdeep Singh Santosh Kumar Rakesh Kumar RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel Materials Research Express hot corrosion boiler steel plasma spray 100Al2O3 and 20TiO2-Al2O3 coatings |
| title | RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| title_full | RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| title_fullStr | RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| title_full_unstemmed | RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| title_short | RETRACTED: Comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| title_sort | retracted comparative study of hot corrosion behavior of thermal sprayed alumina and titanium oxide reinforced alumina coatings on boiler steel |
| topic | hot corrosion boiler steel plasma spray 100Al2O3 and 20TiO2-Al2O3 coatings |
| url | https://doi.org/10.1088/2053-1591/ab6e7e |
| work_keys_str_mv | AT gurdeepsingh retractedcomparativestudyofhotcorrosionbehaviorofthermalsprayedaluminaandtitaniumoxidereinforcedaluminacoatingsonboilersteel AT santoshkumar retractedcomparativestudyofhotcorrosionbehaviorofthermalsprayedaluminaandtitaniumoxidereinforcedaluminacoatingsonboilersteel AT rakeshkumar retractedcomparativestudyofhotcorrosionbehaviorofthermalsprayedaluminaandtitaniumoxidereinforcedaluminacoatingsonboilersteel |