Surface Characterization of TiNi Deformed by High-pressure Torsion

Surface Characterization of TiNi Deformed by High-pressure Torsion

Effect of grain refinements and amorphization by high-pressure torsion (HPT) on surface chemistry was investigated on TiNi. X-ray diffraction and micro-Vickers tests were used to check the phase changes and hardness before and after HPT. X-ray photoelectron spectroscopy was used to observe the chang...

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Main Authors: Awang Shri, Dayangku Noorfazidah, Tsuchiya, Koichi, Yamamoto, Akiko
Format: Article
Language:English
Published: ELSEVIER 2014
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/1/Awang_Shri_2014_AppSurfSci.pdf
id ump-8100
recordtype eprints
spelling ump-81002018-07-12T03:03:14Z http://umpir.ump.edu.my/id/eprint/8100/ Surface Characterization of TiNi Deformed by High-pressure Torsion Awang Shri, Dayangku Noorfazidah Tsuchiya, Koichi Yamamoto, Akiko TJ Mechanical engineering and machinery Effect of grain refinements and amorphization by high-pressure torsion (HPT) on surface chemistry was investigated on TiNi. X-ray diffraction and micro-Vickers tests were used to check the phase changes and hardness before and after HPT. X-ray photoelectron spectroscopy was used to observe the changes in the natural passive film formation on the surface. Phase analysis reveals the change of crystalline TiNi to nanostructured one with increased hardness with straining by HPT. Grain refinement and amorphization caused by HPT reduce the amount of metallic Ni in the passive films and also increase the thickness of the film. ELSEVIER 2014-11-06 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8100/1/Awang_Shri_2014_AppSurfSci.pdf Awang Shri, Dayangku Noorfazidah and Tsuchiya, Koichi and Yamamoto, Akiko (2014) Surface Characterization of TiNi Deformed by High-pressure Torsion. Applied Surface Science, 289. pp. 338-344. ISSN 0169-4332 https://doi.org/10.1016/j.apsusc.2013.10.161 10.1016/j.apsusc.2013.10.161
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
Awang Shri, Dayangku Noorfazidah
Tsuchiya, Koichi
Yamamoto, Akiko
Surface Characterization of TiNi Deformed by High-pressure Torsion
description Effect of grain refinements and amorphization by high-pressure torsion (HPT) on surface chemistry was investigated on TiNi. X-ray diffraction and micro-Vickers tests were used to check the phase changes and hardness before and after HPT. X-ray photoelectron spectroscopy was used to observe the changes in the natural passive film formation on the surface. Phase analysis reveals the change of crystalline TiNi to nanostructured one with increased hardness with straining by HPT. Grain refinement and amorphization caused by HPT reduce the amount of metallic Ni in the passive films and also increase the thickness of the film.
format Article
author Awang Shri, Dayangku Noorfazidah
Tsuchiya, Koichi
Yamamoto, Akiko
author_facet Awang Shri, Dayangku Noorfazidah
Tsuchiya, Koichi
Yamamoto, Akiko
author_sort Awang Shri, Dayangku Noorfazidah
title Surface Characterization of TiNi Deformed by High-pressure Torsion
title_short Surface Characterization of TiNi Deformed by High-pressure Torsion
title_full Surface Characterization of TiNi Deformed by High-pressure Torsion
title_fullStr Surface Characterization of TiNi Deformed by High-pressure Torsion
title_full_unstemmed Surface Characterization of TiNi Deformed by High-pressure Torsion
title_sort surface characterization of tini deformed by high-pressure torsion
publisher ELSEVIER
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/
http://umpir.ump.edu.my/id/eprint/8100/1/Awang_Shri_2014_AppSurfSci.pdf
first_indexed 2023-09-18T22:05:23Z
last_indexed 2023-09-18T22:05:23Z
_version_ 1777414673682923520

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