Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion

W. Xu; D. P. Edwards; X. Wu; M. Stoica; M. Calin; U. Kühn; J. Eckert; K. Xia

doi:10.1016/j.scriptamat.2012.09.023

Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion

W. Xu^*, D. P. Edwards, X. Wu, M. Stoica, M. Calin, U. Kühn, J. Eckert, K. Xia

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form a complete ultrafine-duplex (α + β) structure when subjected to sufficiently high strain. Three prominent features, namely abundant grain boundaries, enhanced atomic transport and nanoscale β matrix grains, were recognized as decisive factors contributing to such unusual precipitation behaviour.

Original language	English
Pages (from-to)	67-70
Number of pages	4
Journal	Scripta Materialia
Volume	68
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2012.09.023
Publication status	Published - Jan 2013
Externally published	Yes

Keywords

β titanium alloy
High-pressure torsion
Nanostructured materials
Precipitation
Severe plastic deformation

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10.1016/j.scriptamat.2012.09.023

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title = "Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion",

abstract = "The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form a complete ultrafine-duplex (α + β) structure when subjected to sufficiently high strain. Three prominent features, namely abundant grain boundaries, enhanced atomic transport and nanoscale β matrix grains, were recognized as decisive factors contributing to such unusual precipitation behaviour.",

keywords = "β titanium alloy, High-pressure torsion, Nanostructured materials, Precipitation, Severe plastic deformation",

author = "W. Xu and Edwards, {D. P.} and X. Wu and M. Stoica and M. Calin and U. K{\"u}hn and J. Eckert and K. Xia",

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AU - Xu, W.

AU - Edwards, D. P.

AU - Wu, X.

AU - Stoica, M.

AU - Calin, M.

AU - Kühn, U.

AU - Eckert, J.

AU - Xia, K.

PY - 2013/1

Y1 - 2013/1

N2 - The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form a complete ultrafine-duplex (α + β) structure when subjected to sufficiently high strain. Three prominent features, namely abundant grain boundaries, enhanced atomic transport and nanoscale β matrix grains, were recognized as decisive factors contributing to such unusual precipitation behaviour.

AB - The introduction of severe plastic deformation by high-pressure torsion greatly altered the ageing response of a Ti-20 wt.% Mo β alloy, promoting equiaxed (instead of acicular) α precipitation to form a complete ultrafine-duplex (α + β) structure when subjected to sufficiently high strain. Three prominent features, namely abundant grain boundaries, enhanced atomic transport and nanoscale β matrix grains, were recognized as decisive factors contributing to such unusual precipitation behaviour.

KW - β titanium alloy

KW - High-pressure torsion

KW - Nanostructured materials

KW - Precipitation

KW - Severe plastic deformation

UR - http://www.scopus.com/inward/record.url?scp=84868210167&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2012.09.023

DO - 10.1016/j.scriptamat.2012.09.023

M3 - Article

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SN - 1359-6462

VL - 68

SP - 67

EP - 70

JO - Scripta Materialia

JF - Scripta Materialia

IS - 1

ER -

Promoting nano/ultrafine-duplex structure via accelerated α precipitation in a β-type titanium alloy severely deformed by high-pressure torsion

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Keywords

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