Strength evaluation of α and β phases by nanoindentation in Ti-15Mo alloys with Fe and Al addition

X. H. Min, L. Zhang, K. Sekido, T. Ohmura, S. Emura, K. Tsuchiya, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The strengths of the α precipitate and the β matrix were evaluated by nanohardness in the Ti215Mo21Fe and Ti215Mo23Al alloys and compared to those of the Ti215Mo alloy. The α phases with similar size (a long axis of a few micrometres and a short axis of a few hundred nanometres), distribution and volume fraction were obtained in three alloys by adjusting the aging temperature. Analyses by SEM-EDS confirmed that Fe and Mo were enriched in the β phase and depleted in the α phase, while Al was enriched in the α phase and depleted in the β phase. Tensile tests were carried out, and the tensile strength was shown to be higher in the Ti215Mo21Fe and Ti215Mo23Al alloys than in the Ti215Mo alloy. The nanohardness measurements indicated that the α phase was softer than the β phase in both Ti215Mo21Fe and Ti215Mo alloys, while it was harder in the Ti215Mo23Al alloy. The increased tensile strength was mainly caused by the strength of the Fe enriched β phase in the Ti215Mo21Fe alloy and by the strength of the Al enriched α phase in the Ti215Mo23Al alloy.

Original languageEnglish
Pages (from-to)342-347
Number of pages6
JournalMaterials Science and Technology
Volume28
Issue number3
DOIs
Publication statusPublished - Feb 27 2012

Fingerprint

Nanoindentation
nanoindentation
evaluation
Nanohardness
tensile strength
Tensile strength
titanium molybdenum alloy
tensile tests
micrometers
Precipitates
Energy dispersive spectroscopy
precipitates
Volume fraction
Aging of materials
adjusting
Scanning electron microscopy
scanning electron microscopy
matrices

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Strength evaluation of α and β phases by nanoindentation in Ti-15Mo alloys with Fe and Al addition. / Min, X. H.; Zhang, L.; Sekido, K.; Ohmura, T.; Emura, S.; Tsuchiya, K.; Tsuzaki, Kaneaki.

In: Materials Science and Technology, Vol. 28, No. 3, 27.02.2012, p. 342-347.

Research output: Contribution to journalArticle

Min, X. H. ; Zhang, L. ; Sekido, K. ; Ohmura, T. ; Emura, S. ; Tsuchiya, K. ; Tsuzaki, Kaneaki. / Strength evaluation of α and β phases by nanoindentation in Ti-15Mo alloys with Fe and Al addition. In: Materials Science and Technology. 2012 ; Vol. 28, No. 3. pp. 342-347.
@article{46895cf38a274a8dbec84351dd3e47fe,
title = "Strength evaluation of α and β phases by nanoindentation in Ti-15Mo alloys with Fe and Al addition",
abstract = "The strengths of the α precipitate and the β matrix were evaluated by nanohardness in the Ti215Mo21Fe and Ti215Mo23Al alloys and compared to those of the Ti215Mo alloy. The α phases with similar size (a long axis of a few micrometres and a short axis of a few hundred nanometres), distribution and volume fraction were obtained in three alloys by adjusting the aging temperature. Analyses by SEM-EDS confirmed that Fe and Mo were enriched in the β phase and depleted in the α phase, while Al was enriched in the α phase and depleted in the β phase. Tensile tests were carried out, and the tensile strength was shown to be higher in the Ti215Mo21Fe and Ti215Mo23Al alloys than in the Ti215Mo alloy. The nanohardness measurements indicated that the α phase was softer than the β phase in both Ti215Mo21Fe and Ti215Mo alloys, while it was harder in the Ti215Mo23Al alloy. The increased tensile strength was mainly caused by the strength of the Fe enriched β phase in the Ti215Mo21Fe alloy and by the strength of the Al enriched α phase in the Ti215Mo23Al alloy.",
author = "Min, {X. H.} and L. Zhang and K. Sekido and T. Ohmura and S. Emura and K. Tsuchiya and Kaneaki Tsuzaki",
year = "2012",
month = "2",
day = "27",
doi = "10.1179/1743284711Y.0000000052",
language = "English",
volume = "28",
pages = "342--347",
journal = "Materials Science and Technology",
issn = "0267-0836",
publisher = "Maney Publishing",
number = "3",

}

TY - JOUR

T1 - Strength evaluation of α and β phases by nanoindentation in Ti-15Mo alloys with Fe and Al addition

AU - Min, X. H.

AU - Zhang, L.

AU - Sekido, K.

AU - Ohmura, T.

AU - Emura, S.

AU - Tsuchiya, K.

AU - Tsuzaki, Kaneaki

PY - 2012/2/27

Y1 - 2012/2/27

N2 - The strengths of the α precipitate and the β matrix were evaluated by nanohardness in the Ti215Mo21Fe and Ti215Mo23Al alloys and compared to those of the Ti215Mo alloy. The α phases with similar size (a long axis of a few micrometres and a short axis of a few hundred nanometres), distribution and volume fraction were obtained in three alloys by adjusting the aging temperature. Analyses by SEM-EDS confirmed that Fe and Mo were enriched in the β phase and depleted in the α phase, while Al was enriched in the α phase and depleted in the β phase. Tensile tests were carried out, and the tensile strength was shown to be higher in the Ti215Mo21Fe and Ti215Mo23Al alloys than in the Ti215Mo alloy. The nanohardness measurements indicated that the α phase was softer than the β phase in both Ti215Mo21Fe and Ti215Mo alloys, while it was harder in the Ti215Mo23Al alloy. The increased tensile strength was mainly caused by the strength of the Fe enriched β phase in the Ti215Mo21Fe alloy and by the strength of the Al enriched α phase in the Ti215Mo23Al alloy.

AB - The strengths of the α precipitate and the β matrix were evaluated by nanohardness in the Ti215Mo21Fe and Ti215Mo23Al alloys and compared to those of the Ti215Mo alloy. The α phases with similar size (a long axis of a few micrometres and a short axis of a few hundred nanometres), distribution and volume fraction were obtained in three alloys by adjusting the aging temperature. Analyses by SEM-EDS confirmed that Fe and Mo were enriched in the β phase and depleted in the α phase, while Al was enriched in the α phase and depleted in the β phase. Tensile tests were carried out, and the tensile strength was shown to be higher in the Ti215Mo21Fe and Ti215Mo23Al alloys than in the Ti215Mo alloy. The nanohardness measurements indicated that the α phase was softer than the β phase in both Ti215Mo21Fe and Ti215Mo alloys, while it was harder in the Ti215Mo23Al alloy. The increased tensile strength was mainly caused by the strength of the Fe enriched β phase in the Ti215Mo21Fe alloy and by the strength of the Al enriched α phase in the Ti215Mo23Al alloy.

UR - http://www.scopus.com/inward/record.url?scp=84863166324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863166324&partnerID=8YFLogxK

U2 - 10.1179/1743284711Y.0000000052

DO - 10.1179/1743284711Y.0000000052

M3 - Article

VL - 28

SP - 342

EP - 347

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 3

ER -