The effect of heat treatment on microstructure evolution and tensile properties of selective laser melted Ti6Al4V alloy

Zulei Liang; Zhonggang Sun; Wenshu Zhang; Shikai Wu; Hui Chang

doi:10.1016/j.jallcom.2018.12.051

The effect of heat treatment on microstructure evolution and tensile properties of selective laser melted Ti6Al4V alloy

Zulei Liang, Zhonggang Sun, Wenshu Zhang, Shikai Wu, Hui Chang

College of Materials Science and Engineering

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

159 Scopus citations

Abstract

The phase transition, microstructure, detailed structures and tensile properties of selective laser melted Ti6Al4V alloy were been examined and analyzed. The results reveal that the as-fabricated Ti6Al4V samples consist of lamellar α’ and acicular α’. Much twins in the lamellar α’ and small α₂ precipitation in the acicular α’ were found. The effects of different heat treatment methods on the as-fabricated samples were also investigated. As a result of the microstructure evolution, samples heat-treated at 800 °C and 850 °C for 4 hours and cooled in air contain the most β and the finest lamellar α exhibiting good comprehensive properties.

Original language	English
Pages (from-to)	1041-1048
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	782
DOIs	https://doi.org/10.1016/j.jallcom.2018.12.051
State	Published - 25 Apr 2019

Keywords

Heat treatment
Microstructure evolution
Selective laser melting
Tensile properties
Ti6Al4V

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10.1016/j.jallcom.2018.12.051

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title = "The effect of heat treatment on microstructure evolution and tensile properties of selective laser melted Ti6Al4V alloy",

abstract = "The phase transition, microstructure, detailed structures and tensile properties of selective laser melted Ti6Al4V alloy were been examined and analyzed. The results reveal that the as-fabricated Ti6Al4V samples consist of lamellar α{\textquoteright} and acicular α{\textquoteright}. Much twins in the lamellar α{\textquoteright} and small α2 precipitation in the acicular α{\textquoteright} were found. The effects of different heat treatment methods on the as-fabricated samples were also investigated. As a result of the microstructure evolution, samples heat-treated at 800 °C and 850 °C for 4 hours and cooled in air contain the most β and the finest lamellar α exhibiting good comprehensive properties.",

keywords = "Heat treatment, Microstructure evolution, Selective laser melting, Tensile properties, Ti6Al4V",

author = "Zulei Liang and Zhonggang Sun and Wenshu Zhang and Shikai Wu and Hui Chang",

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year = "2019",

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doi = "10.1016/j.jallcom.2018.12.051",

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T1 - The effect of heat treatment on microstructure evolution and tensile properties of selective laser melted Ti6Al4V alloy

AU - Liang, Zulei

AU - Sun, Zhonggang

AU - Zhang, Wenshu

AU - Wu, Shikai

AU - Chang, Hui

PY - 2019/4/25

Y1 - 2019/4/25

N2 - The phase transition, microstructure, detailed structures and tensile properties of selective laser melted Ti6Al4V alloy were been examined and analyzed. The results reveal that the as-fabricated Ti6Al4V samples consist of lamellar α’ and acicular α’. Much twins in the lamellar α’ and small α2 precipitation in the acicular α’ were found. The effects of different heat treatment methods on the as-fabricated samples were also investigated. As a result of the microstructure evolution, samples heat-treated at 800 °C and 850 °C for 4 hours and cooled in air contain the most β and the finest lamellar α exhibiting good comprehensive properties.

AB - The phase transition, microstructure, detailed structures and tensile properties of selective laser melted Ti6Al4V alloy were been examined and analyzed. The results reveal that the as-fabricated Ti6Al4V samples consist of lamellar α’ and acicular α’. Much twins in the lamellar α’ and small α2 precipitation in the acicular α’ were found. The effects of different heat treatment methods on the as-fabricated samples were also investigated. As a result of the microstructure evolution, samples heat-treated at 800 °C and 850 °C for 4 hours and cooled in air contain the most β and the finest lamellar α exhibiting good comprehensive properties.

KW - Heat treatment

KW - Microstructure evolution

KW - Selective laser melting

KW - Tensile properties

KW - Ti6Al4V

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DO - 10.1016/j.jallcom.2018.12.051

M3 - 文章

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SN - 0925-8388

VL - 782

SP - 1041

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

The effect of heat treatment on microstructure evolution and tensile properties of selective laser melted Ti6Al4V alloy

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Keywords

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