Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel
In this study, Mo-14Si-10B and Mo-57Si-10B (at%) elemental powders were separately milled using an attritor mill. Mechanically alloyed powders were agglomerated and annealed. Then, powders of Mo-Si-B as alloyed (with composites) and agglomerated (without composites) were plasma sprayed onto plain ca...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | fas |
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Isfahan University of Technology
2010-06-01
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| Series: | Journal of Advanced Materials in Engineering |
| Subjects: | |
| Online Access: | http://jame.iut.ac.ir/article-1-508-en.html |
| _version_ | 1818439101862379520 |
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| author | S. R. Bakhshi M. Salehi H. Edris G. H. Borhani |
| author_facet | S. R. Bakhshi M. Salehi H. Edris G. H. Borhani |
| author_sort | S. R. Bakhshi |
| collection | DOAJ |
| description | In this study, Mo-14Si-10B and Mo-57Si-10B (at%) elemental powders were separately milled using an attritor mill. Mechanically alloyed powders were agglomerated and annealed. Then, powders of Mo-Si-B as alloyed (with composites) and agglomerated (without composites) were plasma sprayed onto plain carbon steels. The samples, both coated and non-coated, were subjected to isothermal oxidation tests. Metallurgical characteristics of powders and coatings were evaluated by SEM and XRD. Plasma-sprayed Mo-Si-B coatings (with phases of MoSi2, Mo5Si3, MoB and Mo5SiB2) greatly improved the oxidation resistance of the plain steel substrates, but plasma-sprayed Mo-Si-B coatings (without any phases) did not significantly improve the oxidation rate of substrates. Also, the kinetics and composition of the oxide-scale have been found to depend on the alloy composition. |
| first_indexed | 2024-12-14T17:51:07Z |
| format | Article |
| id | doaj.art-0154f8ab48404849b47ed71d5714dd95 |
| institution | Directory Open Access Journal |
| issn | 2251-600X 2423-5733 |
| language | fas |
| last_indexed | 2024-12-14T17:51:07Z |
| publishDate | 2010-06-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Advanced Materials in Engineering |
| spelling | doaj.art-0154f8ab48404849b47ed71d5714dd952022-12-21T22:52:37ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering2251-600X2423-57332010-06-012912130Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steelS. R. Bakhshi0M. Salehi1H. Edris2G. H. Borhani3 Department of Materials Engineering, Malek-Ashtar University of Technology Department of Materials Engineering, Isfahan University of Technology Department of Materials Engineering, Isfahan University of Technology Department of Materials Engineering, Malek-Ashtar University of Technology In this study, Mo-14Si-10B and Mo-57Si-10B (at%) elemental powders were separately milled using an attritor mill. Mechanically alloyed powders were agglomerated and annealed. Then, powders of Mo-Si-B as alloyed (with composites) and agglomerated (without composites) were plasma sprayed onto plain carbon steels. The samples, both coated and non-coated, were subjected to isothermal oxidation tests. Metallurgical characteristics of powders and coatings were evaluated by SEM and XRD. Plasma-sprayed Mo-Si-B coatings (with phases of MoSi2, Mo5Si3, MoB and Mo5SiB2) greatly improved the oxidation resistance of the plain steel substrates, but plasma-sprayed Mo-Si-B coatings (without any phases) did not significantly improve the oxidation rate of substrates. Also, the kinetics and composition of the oxide-scale have been found to depend on the alloy composition.http://jame.iut.ac.ir/article-1-508-en.htmlmechanical alloyingthermal sprayinghigh temperature oxidationmolybdenum silicidesmo-si-b. |
| spellingShingle | S. R. Bakhshi M. Salehi H. Edris G. H. Borhani Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel Journal of Advanced Materials in Engineering mechanical alloying thermal spraying high temperature oxidation molybdenum silicides mo-si-b. |
| title | Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel |
| title_full | Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel |
| title_fullStr | Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel |
| title_full_unstemmed | Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel |
| title_short | Isothermal oxidation behavior of plasma-sprayed Mo-Si-B intermetallic coatings on plain steel |
| title_sort | isothermal oxidation behavior of plasma sprayed mo si b intermetallic coatings on plain steel |
| topic | mechanical alloying thermal spraying high temperature oxidation molybdenum silicides mo-si-b. |
| url | http://jame.iut.ac.ir/article-1-508-en.html |
| work_keys_str_mv | AT srbakhshi isothermaloxidationbehaviorofplasmasprayedmosibintermetalliccoatingsonplainsteel AT msalehi isothermaloxidationbehaviorofplasmasprayedmosibintermetalliccoatingsonplainsteel AT hedris isothermaloxidationbehaviorofplasmasprayedmosibintermetalliccoatingsonplainsteel AT ghborhani isothermaloxidationbehaviorofplasmasprayedmosibintermetalliccoatingsonplainsteel |