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Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment

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Main Authors: Al-Dabbagh, Jinan B., Rozman, Mohd Tahar, Mahadzir, Ishak, Siti Aisyah, Harun
Other Authors: jbdabbagh@ump.edu.my.
Format: Article
Language:English
Published: Universiti Malaysia Perlis 2016
Subjects:
TiAl intermetallics
Mechanical alloying
Nanostructured materials
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41320
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spelling my.unimap-413202016-04-22T08:56:53Z Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment Al-Dabbagh, Jinan B. Rozman, Mohd Tahar Mahadzir, Ishak Siti Aisyah, Harun jbdabbagh@ump.edu.my. iroz80@yahoo.com. mahadzir@ump.edu.my. aishahh@ump.edu.my. TiAl intermetallics Mechanical alloying Nanostructured materials Link to publisher's homepage at http://ijneam.unimap.edu.my/ Mechanical alloying (MA) of Ti-50%Al (molar fraction) powder by using Planetary ball milling equipment, have been successfully refine the crystallite size and produced TiAl nano-alloys. The characteristics of the powder samples, including composition, surface morphology and microstructure, were investigated by using X-ray diffraction and field emission scanning electron microscopy (FESEM) coupled with Energy-dispersive X-ray spectroscopy (EDX). Mechanical alloying of elemental Ti and Al powder mixture resulting in the formation of Ti(Al) solid solution which exhibits a formation of TiAl phase after 40 h of milling. Crystallite size refinement by MA shows a great reduction from 70nm, down to minimum of 21nm after 100h of milling. Subsequent heat treatment of powder milled for 80 h exhibits the formation of a mixture of mainly α2-Ti3Al plus γ-TiAl phases. On the other hand, 100h milled powder exhibits the formation of a major γ-TiAl with α2-Ti3Al and a minor reflection of TiAl3 phases. The crystallite size of heat treated powder are varies and exhibits a grain growth after 40h of mechanical alloying process as a result of multiple phases formation. 2016-04-22T08:56:53Z 2016-04-22T08:56:53Z 2015 Article International Journal of Nanoelectronics and Materials, vol.8, 2015, pages 23-32 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41320 en Universiti Malaysia Perlis
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic TiAl intermetallics
Mechanical alloying
Nanostructured materials
spellingShingle TiAl intermetallics
Mechanical alloying
Nanostructured materials
Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
Mahadzir, Ishak
Siti Aisyah, Harun
Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
description Link to publisher's homepage at http://ijneam.unimap.edu.my/
author2 jbdabbagh@ump.edu.my.
author_facet jbdabbagh@ump.edu.my.
Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
Mahadzir, Ishak
Siti Aisyah, Harun
format Article
author Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
Mahadzir, Ishak
Siti Aisyah, Harun
author_sort Al-Dabbagh, Jinan B.
title Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
title_short Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
title_full Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
title_fullStr Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
title_full_unstemmed Structural and phase formation of TiAl alloys synthesized by mechanical alloying and heat treatment
title_sort structural and phase formation of tial alloys synthesized by mechanical alloying and heat treatment
publisher Universiti Malaysia Perlis
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41320
_version_ 1643799681395851264
score 13.222552

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