The microstructure and mechanical properties of friction stir welded Ti6Al4V titanium alloy under β transus temperature

S. D. Ji; B. Zhuo; S. S. Gao; Y. X. Huang; L. G. Zhang; J. Z. Li; Y. N. Ma

The microstructure and mechanical properties of friction stir welded Ti6Al4V titanium alloy under β transus temperature

S. D. Ji
, B. Zhuo
, S. S. Gao^*
, Y. X. Huang
, L. G. Zhang
, J. Z. Li
, Y. N. Ma

^*Corresponding author for this work

School of Materials Science and Engineering

Shenyang Aerospace University
China Aviation Industry Corporation

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

3 Scopus citations

Abstract

Ti6Al4V titanium alloy is friction stir welded using a W-Re rotational tool. The effects of welding speed on the microstructure, tensile strength and fracture properties of weld are investigated. At the rotational velocity of 250 r/min, the peak temperature is lower than β transus temperature, and the weld nugget is made up of fine a phase and transformed β phase. The grain size of shoulder affected zone is bigger than that of weld nugget because of low thermal conductivity of Ti6Al4V titanium alloy. By increasing the welding speed, the grain size of weld nugget, the tensile strength and the ductility of weld all are decreased.

Original language	English
Pages (from-to)	27-31
Number of pages	5
Journal	Engineering Review
Volume	35
Issue number	1
State	Published - 1 Jan 2015

Keywords

Friction stir welding
Microstructure
Tensile strength
Ti6Al4V titanium alloy

Cite this

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title = "The microstructure and mechanical properties of friction stir welded Ti6Al4V titanium alloy under β transus temperature",

abstract = "Ti6Al4V titanium alloy is friction stir welded using a W-Re rotational tool. The effects of welding speed on the microstructure, tensile strength and fracture properties of weld are investigated. At the rotational velocity of 250 r/min, the peak temperature is lower than β transus temperature, and the weld nugget is made up of fine a phase and transformed β phase. The grain size of shoulder affected zone is bigger than that of weld nugget because of low thermal conductivity of Ti6Al4V titanium alloy. By increasing the welding speed, the grain size of weld nugget, the tensile strength and the ductility of weld all are decreased.",

keywords = "Friction stir welding, Microstructure, Tensile strength, Ti6Al4V titanium alloy",

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T1 - The microstructure and mechanical properties of friction stir welded Ti6Al4V titanium alloy under β transus temperature

AU - Ji, S. D.

AU - Zhuo, B.

AU - Gao, S. S.

AU - Huang, Y. X.

AU - Zhang, L. G.

AU - Li, J. Z.

AU - Ma, Y. N.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Ti6Al4V titanium alloy is friction stir welded using a W-Re rotational tool. The effects of welding speed on the microstructure, tensile strength and fracture properties of weld are investigated. At the rotational velocity of 250 r/min, the peak temperature is lower than β transus temperature, and the weld nugget is made up of fine a phase and transformed β phase. The grain size of shoulder affected zone is bigger than that of weld nugget because of low thermal conductivity of Ti6Al4V titanium alloy. By increasing the welding speed, the grain size of weld nugget, the tensile strength and the ductility of weld all are decreased.

AB - Ti6Al4V titanium alloy is friction stir welded using a W-Re rotational tool. The effects of welding speed on the microstructure, tensile strength and fracture properties of weld are investigated. At the rotational velocity of 250 r/min, the peak temperature is lower than β transus temperature, and the weld nugget is made up of fine a phase and transformed β phase. The grain size of shoulder affected zone is bigger than that of weld nugget because of low thermal conductivity of Ti6Al4V titanium alloy. By increasing the welding speed, the grain size of weld nugget, the tensile strength and the ductility of weld all are decreased.

KW - Friction stir welding

KW - Microstructure

KW - Tensile strength

KW - Ti6Al4V titanium alloy

UR - https://www.scopus.com/pages/publications/84921525357

M3 - 文章

AN - SCOPUS:84921525357

SN - 1330-9587

VL - 35

SP - 27

EP - 31

JO - Engineering Review

JF - Engineering Review

IS - 1

ER -

The microstructure and mechanical properties of friction stir welded Ti6Al4V titanium alloy under β transus temperature

Abstract

Keywords

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