Effect of Ti2Cu precipitates on mechanical behavior of Ti-2.5Cu alloy subjected to different heat treatments

X. Yao; Q. Y. Sun; L. Xiao; J. Sun

doi:10.1016/j.jallcom.2009.04.095

Effect of Ti₂Cu precipitates on mechanical behavior of Ti-2.5Cu alloy subjected to different heat treatments

X. Yao
, Q. Y. Sun
, L. Xiao
, J. Sun

School of Materials Science and Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Review article › peer-review

105 Scopus citations

Abstract

Precipitate behavior of Ti₂Cu particles in Ti-2.5Cu alloy subjected to different heat treatments and its effect on mechanical properties of this alloy were studied. Ti₂Cu intermetallic compounds were observed to form in two shapes: spherical particles due to decomposition of supersaturated α phase during annealing at 790 °C and acicular ones produced by aging after solution. Microstructural examinations via transmission electron microscopy (TEM) demonstrated that spherical Ti₂Cu of 0.2-0.5 μm in diameter could occur in both intra-grains and inter-grains. On the other hand, the acicular Ti₂Cu of about tens of nanometers in width and 100 nm in length nucleated in the interior of the grains. Tensile results showed that acicular particles made greater contributions to the strengthening of Ti-2.5Cu alloy than spherical ones.

Original language	English
Pages (from-to)	196-202
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	484
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2009.04.095
State	Published - 18 Sep 2009

Keywords

Interface
Mechanical property
Precipitation
Ti-2.5Cu alloy

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10.1016/j.jallcom.2009.04.095

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title = "Effect of Ti2Cu precipitates on mechanical behavior of Ti-2.5Cu alloy subjected to different heat treatments",

abstract = "Precipitate behavior of Ti2Cu particles in Ti-2.5Cu alloy subjected to different heat treatments and its effect on mechanical properties of this alloy were studied. Ti2Cu intermetallic compounds were observed to form in two shapes: spherical particles due to decomposition of supersaturated α phase during annealing at 790 °C and acicular ones produced by aging after solution. Microstructural examinations via transmission electron microscopy (TEM) demonstrated that spherical Ti2Cu of 0.2-0.5 μm in diameter could occur in both intra-grains and inter-grains. On the other hand, the acicular Ti2Cu of about tens of nanometers in width and 100 nm in length nucleated in the interior of the grains. Tensile results showed that acicular particles made greater contributions to the strengthening of Ti-2.5Cu alloy than spherical ones.",

keywords = "Interface, Mechanical property, Precipitation, Ti-2.5Cu alloy",

author = "X. Yao and Sun, \{Q. Y.\} and L. Xiao and J. Sun",

year = "2009",

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day = "18",

doi = "10.1016/j.jallcom.2009.04.095",

language = "英语",

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pages = "196--202",

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}

TY - JOUR

T1 - Effect of Ti2Cu precipitates on mechanical behavior of Ti-2.5Cu alloy subjected to different heat treatments

AU - Yao, X.

AU - Sun, Q. Y.

AU - Xiao, L.

AU - Sun, J.

PY - 2009/9/18

Y1 - 2009/9/18

N2 - Precipitate behavior of Ti2Cu particles in Ti-2.5Cu alloy subjected to different heat treatments and its effect on mechanical properties of this alloy were studied. Ti2Cu intermetallic compounds were observed to form in two shapes: spherical particles due to decomposition of supersaturated α phase during annealing at 790 °C and acicular ones produced by aging after solution. Microstructural examinations via transmission electron microscopy (TEM) demonstrated that spherical Ti2Cu of 0.2-0.5 μm in diameter could occur in both intra-grains and inter-grains. On the other hand, the acicular Ti2Cu of about tens of nanometers in width and 100 nm in length nucleated in the interior of the grains. Tensile results showed that acicular particles made greater contributions to the strengthening of Ti-2.5Cu alloy than spherical ones.

AB - Precipitate behavior of Ti2Cu particles in Ti-2.5Cu alloy subjected to different heat treatments and its effect on mechanical properties of this alloy were studied. Ti2Cu intermetallic compounds were observed to form in two shapes: spherical particles due to decomposition of supersaturated α phase during annealing at 790 °C and acicular ones produced by aging after solution. Microstructural examinations via transmission electron microscopy (TEM) demonstrated that spherical Ti2Cu of 0.2-0.5 μm in diameter could occur in both intra-grains and inter-grains. On the other hand, the acicular Ti2Cu of about tens of nanometers in width and 100 nm in length nucleated in the interior of the grains. Tensile results showed that acicular particles made greater contributions to the strengthening of Ti-2.5Cu alloy than spherical ones.

KW - Interface

KW - Mechanical property

KW - Precipitation

KW - Ti-2.5Cu alloy

UR - https://www.scopus.com/pages/publications/69949092678

U2 - 10.1016/j.jallcom.2009.04.095

DO - 10.1016/j.jallcom.2009.04.095

M3 - 文献综述

AN - SCOPUS:69949092678

SN - 0925-8388

VL - 484

SP - 196

EP - 202

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Effect of Ti₂Cu precipitates on mechanical behavior of Ti-2.5Cu alloy subjected to different heat treatments

Abstract

Keywords

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