Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes
The possibility of forming a TiN dispersed composite layer on steel was studied by preplacement of titanium powder on steel surface and melting under TIG (Tungsten inert gas) torch in a reactive environment. The surface melting of preplaced 1.8 mg/mm2 Ti powder was performed under TIG torch with ene...
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| Format: | Article |
| Language: | English |
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2011
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| Online Access: | http://irep.iium.edu.my/5481/ http://irep.iium.edu.my/5481/1/AMR.264-265.1415.pdf |
| _version_ | 1848776511000150016 |
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| author | Mridha, Shahjahan Dyuti, S. |
| author_facet | Mridha, Shahjahan Dyuti, S. |
| author_sort | Mridha, Shahjahan |
| building | IIUM Repository |
| collection | Online Access |
| description | The possibility of forming a TiN dispersed composite layer on steel was studied by preplacement of titanium powder on steel surface and melting under TIG (Tungsten inert gas) torch in a reactive environment. The surface melting of preplaced 1.8 mg/mm2 Ti powder was performed under TIG torch with energy inputs of 324,378 and 432 J/mm in a pure nitrogen environment. With these melting conditions, the powder layer along with a thin layer of the substrate melted and produced a melt pool of around 1mm thickness. The resolidified melt layer consisted of dispersion of TiN dendrites in ferrite matrix and thus a composite of TiN in ferrite is created on the steel surface. The concentration of dendrite population was found to be higher nearer the melt surface compared to the deeper depth. A maximum surface hardness of about 2000 Hv was developed at the
surface when glazed with an energy input of 432 J/mm and the hardness decreased gradually away from the surface. The hardness development is directly related to the concentration of TiN dendrites. |
| first_indexed | 2025-11-14T14:31:15Z |
| format | Article |
| id | iium-5481 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:31:15Z |
| publishDate | 2011 |
| recordtype | eprints |
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| spelling | iium-54812011-11-22T02:39:55Z http://irep.iium.edu.my/5481/ Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes Mridha, Shahjahan Dyuti, S. TN600 Metallurgy The possibility of forming a TiN dispersed composite layer on steel was studied by preplacement of titanium powder on steel surface and melting under TIG (Tungsten inert gas) torch in a reactive environment. The surface melting of preplaced 1.8 mg/mm2 Ti powder was performed under TIG torch with energy inputs of 324,378 and 432 J/mm in a pure nitrogen environment. With these melting conditions, the powder layer along with a thin layer of the substrate melted and produced a melt pool of around 1mm thickness. The resolidified melt layer consisted of dispersion of TiN dendrites in ferrite matrix and thus a composite of TiN in ferrite is created on the steel surface. The concentration of dendrite population was found to be higher nearer the melt surface compared to the deeper depth. A maximum surface hardness of about 2000 Hv was developed at the surface when glazed with an energy input of 432 J/mm and the hardness decreased gradually away from the surface. The hardness development is directly related to the concentration of TiN dendrites. 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/5481/1/AMR.264-265.1415.pdf Mridha, Shahjahan and Dyuti, S. (2011) Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes. Advanced Materials Research, 264-26. pp. 1415-1420. ISSN 1662-8985 http://dx.doi.org/10.4028/www.scientific.net/AMR.264-265.1415 doi:10.4028/www.scientific.net/AMR.264-265.1415 |
| spellingShingle | TN600 Metallurgy Mridha, Shahjahan Dyuti, S. Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title | Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title_full | Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title_fullStr | Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title_full_unstemmed | Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title_short | Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes |
| title_sort | formation of tin dispersed composite layer on steel surfaces by titanium powder preplacement and tig surface melting processes |
| topic | TN600 Metallurgy |
| url | http://irep.iium.edu.my/5481/ http://irep.iium.edu.my/5481/ http://irep.iium.edu.my/5481/ http://irep.iium.edu.my/5481/1/AMR.264-265.1415.pdf |