Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy

Fully dense powder metallurgy (PM) Ti–4Fe–0.2O–3Cu–0.4Si alloy was produced employing spark plasma sintering (SPS) and hot extrusion aiming to develop an inexpensive high strength dual-phase (α+β) Ti alloy. The microstructure consisted of globularized fine grain α phase dispersed in the β matrix hav...

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Main Authors: Bahador, Abdollah, Umeda, Junko, Yamanoglu, Ridvan, Abu Bakar, Tuty Asma, Kondoh, Katsuyoshi
Format: Article
Published: Elsevier B.V. 2021
Subjects:
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author Bahador, Abdollah
Umeda, Junko
Yamanoglu, Ridvan
Abu Bakar, Tuty Asma
Kondoh, Katsuyoshi
author_facet Bahador, Abdollah
Umeda, Junko
Yamanoglu, Ridvan
Abu Bakar, Tuty Asma
Kondoh, Katsuyoshi
author_sort Bahador, Abdollah
collection ePrints
description Fully dense powder metallurgy (PM) Ti–4Fe–0.2O–3Cu–0.4Si alloy was produced employing spark plasma sintering (SPS) and hot extrusion aiming to develop an inexpensive high strength dual-phase (α+β) Ti alloy. The microstructure consisted of globularized fine grain α phase dispersed in the β matrix having the sharp texture of [removed]//extrusion direction. The tensile strength of alloy (~1060 MPa) is comparatively higher than the conventional Ti–6Al–4V alloy produced by a similar method. Based on theoretical calculations the grain refinement and solid solution phenomena were the principal strengthening mechanisms. Additionally, it was found that Si solute remarkably enhanced the microstructure stability (using in situ EBSD observation) and yield strength of alloy at high-temperature.
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spelling utm.eprints-940062022-02-28T13:31:06Z http://eprints.utm.my/94006/ Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy Bahador, Abdollah Umeda, Junko Yamanoglu, Ridvan Abu Bakar, Tuty Asma Kondoh, Katsuyoshi TJ Mechanical engineering and machinery Fully dense powder metallurgy (PM) Ti–4Fe–0.2O–3Cu–0.4Si alloy was produced employing spark plasma sintering (SPS) and hot extrusion aiming to develop an inexpensive high strength dual-phase (α+β) Ti alloy. The microstructure consisted of globularized fine grain α phase dispersed in the β matrix having the sharp texture of [removed]//extrusion direction. The tensile strength of alloy (~1060 MPa) is comparatively higher than the conventional Ti–6Al–4V alloy produced by a similar method. Based on theoretical calculations the grain refinement and solid solution phenomena were the principal strengthening mechanisms. Additionally, it was found that Si solute remarkably enhanced the microstructure stability (using in situ EBSD observation) and yield strength of alloy at high-temperature. Elsevier B.V. 2021-01-07 Article PeerReviewed Bahador, Abdollah and Umeda, Junko and Yamanoglu, Ridvan and Abu Bakar, Tuty Asma and Kondoh, Katsuyoshi (2021) Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy. Materials Science and Engineering A, 800 . ISSN 0921-5093 http://dx.doi.org/10.1016/j.msea.2020.140324 DOI:10.1016/j.msea.2020.140324
spellingShingle TJ Mechanical engineering and machinery
Bahador, Abdollah
Umeda, Junko
Yamanoglu, Ridvan
Abu Bakar, Tuty Asma
Kondoh, Katsuyoshi
Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title_full Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title_fullStr Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title_full_unstemmed Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title_short Strengthening evaluation and high-temperature behavior of ti–fe–o–cu–si alloy
title_sort strengthening evaluation and high temperature behavior of ti fe o cu si alloy
topic TJ Mechanical engineering and machinery
work_keys_str_mv AT bahadorabdollah strengtheningevaluationandhightemperaturebehavioroftifeocusialloy
AT umedajunko strengtheningevaluationandhightemperaturebehavioroftifeocusialloy
AT yamanogluridvan strengtheningevaluationandhightemperaturebehavioroftifeocusialloy
AT abubakartutyasma strengtheningevaluationandhightemperaturebehavioroftifeocusialloy
AT kondohkatsuyoshi strengtheningevaluationandhightemperaturebehavioroftifeocusialloy