Structural and Phase Formation of TiAl Alloys Synthesized by Mechanical Alloying and Heat Treatment

Structural and Phase Formation of TiAl Alloys Synthesized by Mechanical Alloying and Heat Treatment

Mechanical alloying (MA) of Ti%Al (molar fraction) powder by using Planetary ball milling equipment, have been sucessfully refine the crystallite size and produced TiAl nano-alloys. The characteristics of the powder samples, including composition, surface morpology and microstructure, were investiga...

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Main Authors: Al-Dabbagh, Jinan B., Rozman, Mohd Tahar, M., Ishak, Siti Aisyah, Harun
Format: Article
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/8962/
http://umpir.ump.edu.my/id/eprint/8962/
http://umpir.ump.edu.my/id/eprint/8962/1/fist-2015-fist-structural%20and%20phase%20formation.pdf
id ump-8962
recordtype eprints
spelling ump-89622015-06-23T07:10:55Z http://umpir.ump.edu.my/id/eprint/8962/ Structural and Phase Formation of TiAl Alloys Synthesized by Mechanical Alloying and Heat Treatment Al-Dabbagh, Jinan B. Rozman, Mohd Tahar M., Ishak Siti Aisyah, Harun TJ Mechanical engineering and machinery Mechanical alloying (MA) of Ti%Al (molar fraction) powder by using Planetary ball milling equipment, have been sucessfully refine the crystallite size and produced TiAl nano-alloys. The characteristics of the powder samples, including composition, surface morpology and microstructure, were investigated by using X-ray diffraction and field emission scanning electron microscopy (FESEM) coupled with Energy-dispersive X-ray spectrocopy (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. Subsequently heat treatment of powder milled for 80 h exhibits the formation of a mixture of mainly a2-Ti3Al plus y-TiAl phases. On the other hand,100 hmilled powder exhibits the formation of a major y-TiAl with a2-TiAl 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. Universiti Malaysia Perlis (UniMAP) 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8962/1/fist-2015-fist-structural%20and%20phase%20formation.pdf Al-Dabbagh, Jinan B. and Rozman, Mohd Tahar and M., Ishak and Siti Aisyah, Harun (2015) Structural and Phase Formation of TiAl Alloys Synthesized by Mechanical Alloying and Heat Treatment. International Journal Nanoelectronics and Materials, 8. pp. 23-32. ISSN 1985-5761 (print); 2232-1535 (online) http://ijneam.unimap.edu.my/images/PDF/Vol_8_1/Vol%208_No%201_4_23-32.pdf
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
M., Ishak
Siti Aisyah, Harun
Structural and Phase Formation of TiAl Alloys Synthesized by Mechanical Alloying and Heat Treatment
description Mechanical alloying (MA) of Ti%Al (molar fraction) powder by using Planetary ball milling equipment, have been sucessfully refine the crystallite size and produced TiAl nano-alloys. The characteristics of the powder samples, including composition, surface morpology and microstructure, were investigated by using X-ray diffraction and field emission scanning electron microscopy (FESEM) coupled with Energy-dispersive X-ray spectrocopy (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. Subsequently heat treatment of powder milled for 80 h exhibits the formation of a mixture of mainly a2-Ti3Al plus y-TiAl phases. On the other hand,100 hmilled powder exhibits the formation of a major y-TiAl with a2-TiAl 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.
format Article
author Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
M., Ishak
Siti Aisyah, Harun
author_facet Al-Dabbagh, Jinan B.
Rozman, Mohd Tahar
M., 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 (UniMAP)
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/8962/
http://umpir.ump.edu.my/id/eprint/8962/
http://umpir.ump.edu.my/id/eprint/8962/1/fist-2015-fist-structural%20and%20phase%20formation.pdf
first_indexed 2023-09-18T22:07:00Z
last_indexed 2023-09-18T22:07:00Z
_version_ 1777414774875750400

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