Formation of TiN dispersed composite layer on steel surfaces by Titanium Powder Preplacement and TIG Surface Melting Processes

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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Main Authors: Mridha, Shahjahan, Dyuti, S.
Format: Article
Language:English
Published: 2011
Subjects:
TN600 Metallurgy
Online Access: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
id iium-5481
recordtype eprints
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
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TN600 Metallurgy
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
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.
format Article
author Mridha, Shahjahan
Dyuti, S.
author_facet Mridha, Shahjahan
Dyuti, S.
author_sort Mridha, Shahjahan
title 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_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_sort formation of tin dispersed composite layer on steel surfaces by titanium powder preplacement and tig surface melting processes
publishDate 2011
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
first_indexed 2023-09-18T20:14:06Z
last_indexed 2023-09-18T20:14:06Z
_version_ 1777407671793614848

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