Development of grain structure in β-phase field during friction stir welding of Ti-6Al-4V alloy

S. Mironov; Y. Zhang; Y. S. Sato; H. Kokawa

doi:10.1016/j.scriptamat.2008.02.014

Development of grain structure in β-phase field during friction stir welding of Ti-6Al-4V alloy

S. Mironov, Y. Zhang, Y. S. Sato, H. Kokawa

ENG - Materials Processing

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

89 Citations (Scopus)

Abstract

The electron backscattered diffraction technique was employed to examine the microstructural evolution in the high-temperature β-phase field during friction stir welding of a Ti-6Al-4V alloy. Reconstruction of the β-grain structure demonstrated that development of the grain structure is presumably governed by grain elongation and transverse grain subdivision. Orientation measurements in the retained β-phase showed that the material flow may be described in terms of a simple-shear deformation arising from the {1 1 0}〈1 1 1〉 slip.

Original language	English
Pages (from-to)	27-30
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	1
DOIs	https://doi.org/10.1016/j.scriptamat.2008.02.014
Publication status	Published - 2008 Jul

Keywords

Electron backscattering diffraction
Friction stir welding
Microstructure
Titanium alloys
β-phase deformation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2008.02.014

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@article{25d80354c6da44a2ace73a75ae34ffbe,

title = "Development of grain structure in β-phase field during friction stir welding of Ti-6Al-4V alloy",

abstract = "The electron backscattered diffraction technique was employed to examine the microstructural evolution in the high-temperature β-phase field during friction stir welding of a Ti-6Al-4V alloy. Reconstruction of the β-grain structure demonstrated that development of the grain structure is presumably governed by grain elongation and transverse grain subdivision. Orientation measurements in the retained β-phase showed that the material flow may be described in terms of a simple-shear deformation arising from the {1 1 0}〈1 1 1〉 slip.",

keywords = "Electron backscattering diffraction, Friction stir welding, Microstructure, Titanium alloys, β-phase deformation",

author = "S. Mironov and Y. Zhang and Sato, {Y. S.} and H. Kokawa",

note = "Funding Information: The authors are grateful to Mr. A. Honda for technical assistance. They also thank Hitachi Ltd. for supplying the test material. S.M. would also like to express his thanks to the Japan Society for the Promotion of Science and Tohoku University for providing a scientific fellowship. Financial support from the Japanese Ministry of Education, Science, Sports and Culture with a Grant-in-Aid from the Global COE Program in Materials Integration International Center of Education and Research at Tohoku University is gratefully acknowledged.",

year = "2008",

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AU - Mironov, S.

AU - Zhang, Y.

AU - Sato, Y. S.

AU - Kokawa, H.

N1 - Funding Information: The authors are grateful to Mr. A. Honda for technical assistance. They also thank Hitachi Ltd. for supplying the test material. S.M. would also like to express his thanks to the Japan Society for the Promotion of Science and Tohoku University for providing a scientific fellowship. Financial support from the Japanese Ministry of Education, Science, Sports and Culture with a Grant-in-Aid from the Global COE Program in Materials Integration International Center of Education and Research at Tohoku University is gratefully acknowledged.

PY - 2008/7

Y1 - 2008/7

N2 - The electron backscattered diffraction technique was employed to examine the microstructural evolution in the high-temperature β-phase field during friction stir welding of a Ti-6Al-4V alloy. Reconstruction of the β-grain structure demonstrated that development of the grain structure is presumably governed by grain elongation and transverse grain subdivision. Orientation measurements in the retained β-phase showed that the material flow may be described in terms of a simple-shear deformation arising from the {1 1 0}〈1 1 1〉 slip.

AB - The electron backscattered diffraction technique was employed to examine the microstructural evolution in the high-temperature β-phase field during friction stir welding of a Ti-6Al-4V alloy. Reconstruction of the β-grain structure demonstrated that development of the grain structure is presumably governed by grain elongation and transverse grain subdivision. Orientation measurements in the retained β-phase showed that the material flow may be described in terms of a simple-shear deformation arising from the {1 1 0}〈1 1 1〉 slip.

KW - Electron backscattering diffraction

KW - Friction stir welding

KW - Microstructure

KW - Titanium alloys

KW - β-phase deformation

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