Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel
In this work, alumina-aluminide coatings were formed on ferritic-martensitic T91 steel substrate. First, coatings of aluminum were deposited electrochemically on T91 steel in a room temperature AlCl3-1-ethyl-3-methyl imidazolium chloride ionic liquid, then the obtained coating was subjected...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2014-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2014/1450-53391400022C.pdf |
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| author | Choudhary R.K. Kain V. Hubli R.C. |
| author_facet | Choudhary R.K. Kain V. Hubli R.C. |
| author_sort | Choudhary R.K. |
| collection | DOAJ |
| description | In this work, alumina-aluminide coatings were formed on ferritic-martensitic
T91 steel substrate. First, coatings of aluminum were deposited
electrochemically on T91 steel in a room temperature AlCl3-1-ethyl-3-methyl
imidazolium chloride ionic liquid, then the obtained coating was subjected to
a two stage heat treatment procedure consisting of prolonged heat treatment
of the sample in vacuum at 300 ○C followed by oxidative heat treatment in air
at 650 ○C for 16 hours. X-ray diffraction measurement of the oxidatively heat
treated samples indicated formation of Fe-Al and Cr-Al intermetallics and
presence of amorphous alumina. Energy dispersive X-ray spectroscopy
measurement confirmed 50 wt- % O in the oxidized coating. Microscratch
adhesion test conducted on alumina-aluminide coating formed on T91 steel
substrate showed no major adhesive detachment up to 20 N loads. However,
adhesive failure was observed at a few discrete points on the coating along
the scratch track. |
| format | Article |
| id | doaj-art-01abe49f7f5a4eca82c0e8fbace756f4 |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-01abe49f7f5a4eca82c0e8fbace756f42025-02-02T05:00:43ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392014-01-0150216517010.2298/JMMB140724022C1450-53391400022CFormation of alumina-aluminide coatings on ferritic-martensitic T91 steelChoudhary R.K.0Kain V.1Hubli R.C.2Materials Processing Division, Bhabha Atomic Research Centre, Mumbai, IndiaMaterials Science Division, Bhabha Atomic Research Centre, Mumbai, IndiaMaterials Processing Division, Bhabha Atomic Research Centre, Mumbai, IndiaIn this work, alumina-aluminide coatings were formed on ferritic-martensitic T91 steel substrate. First, coatings of aluminum were deposited electrochemically on T91 steel in a room temperature AlCl3-1-ethyl-3-methyl imidazolium chloride ionic liquid, then the obtained coating was subjected to a two stage heat treatment procedure consisting of prolonged heat treatment of the sample in vacuum at 300 ○C followed by oxidative heat treatment in air at 650 ○C for 16 hours. X-ray diffraction measurement of the oxidatively heat treated samples indicated formation of Fe-Al and Cr-Al intermetallics and presence of amorphous alumina. Energy dispersive X-ray spectroscopy measurement confirmed 50 wt- % O in the oxidized coating. Microscratch adhesion test conducted on alumina-aluminide coating formed on T91 steel substrate showed no major adhesive detachment up to 20 N loads. However, adhesive failure was observed at a few discrete points on the coating along the scratch track.http://www.doiserbia.nb.rs/img/doi/1450-5339/2014/1450-53391400022C.pdfaluminaaluminidecoatingelectrodepositionoxidationadhesion |
| spellingShingle | Choudhary R.K. Kain V. Hubli R.C. Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel Journal of Mining and Metallurgy. Section B: Metallurgy alumina aluminide coating electrodeposition oxidation adhesion |
| title | Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel |
| title_full | Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel |
| title_fullStr | Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel |
| title_full_unstemmed | Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel |
| title_short | Formation of alumina-aluminide coatings on ferritic-martensitic T91 steel |
| title_sort | formation of alumina aluminide coatings on ferritic martensitic t91 steel |
| topic | alumina aluminide coating electrodeposition oxidation adhesion |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2014/1450-53391400022C.pdf |
| work_keys_str_mv | AT choudharyrk formationofaluminaaluminidecoatingsonferriticmartensitict91steel AT kainv formationofaluminaaluminidecoatingsonferriticmartensitict91steel AT hublirc formationofaluminaaluminidecoatingsonferriticmartensitict91steel |