Microstructural and Mechanical Properties of Ti Composite Reinforced with TiO₂ Additive Particles

Yoshimura, Tomohiro; Thotsaphon, Threrujirapapong; Imai, Hisashi et al.

Transactions of JWRI, 2009, 38(2), 37-41

Number of Access:664（2025-09-06 03:56 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/6987

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
jwri38_02_037 pdf None 2.23 MB 409 2012.09.22  

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Microstructural and Mechanical Properties of Ti Composite Reinforced with TiO₂ Additive Particles
Creator
CreatorName
Yoshimura, Tomohiro
CreatorName
Thotsaphon, Threrujirapapong
NRID
1000030452379 1000030452379
CreatorName
Imai, Hisashi
NRID
1000050345138 1000050345138
researchmap permalink
kondoh kondoh
Scopus Author ID
9942942300 9942942300
CreatorName
Kondoh, Katsuyoshi
Subject
Titanium
Oxide dispersion strengthening
Spark plasma sintering
Hot extrusion
Abstract
Titanium (Ti) alloys can be applied to various products in aircraft, automotive and motor cycles industries because of their weight reduction effects, superior mechanical responses and high corrosion resistance. Ti-6Al-4V (Ti64) is one of the most common Ti alloys used in structural components. It shows a high tensile strength of 900MPa or more. On the other hand, the poor elongation of about 10% is one of the disadvantages of Ti64 alloys. In addition, high cost additional elements such as vanadium and difficult melting processes increase the total material cost of Ti64. That is why its applications are limited to high-performance products. In this study, a highly strengthened pure titanium has been developed using high-purity titanium powder (HP-Ti) by elemental mixing with titanium oxide (TiO₂) powder and avoiding the melting process. The main strengthening mechanism of this material is the oxide dispersion strengthening (ODS) by elementally mixed TiO₂ in fine dispersoids. Elementally mixed powder of HP-Ti and TiO₂ was consolidated by the spark plasma sintering (SPS) process. To improve the ductility of sintered material, hot extrusion was applied to sintered HP-Ti. For example, the extruded HP-Ti mixed with 0.8wt% of TiO₂ particles indicated a high tensile strength of 863MPa and good elongation of 26.7%.
Publisher
大阪大学接合科学研究所
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
Joining and Welding Research Institute, Osaka University
Source Title
Transactions of JWRI
Volume (Issue)
38(2)
Page
37-41
Date of Issued
2009-12
Language
English
Handle URL
https://hdl.handle.net/11094/6987
DOI
https://doi.org/10.18910/6987
PISSN
03874508
NCID
AA00867058
Access Rights
open access
oaire:version
Version of Record
Category
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.38 No.2 (2009-12)