Tensile behavior of friction-stir welded AZ31 magnesium alloy

S. Mironov; T. Onuma; Y. S. Sato; S. Yoneyama; H. Kokawa

doi:10.1016/j.msea.2016.10.036

Tensile behavior of friction-stir welded AZ31 magnesium alloy

S. Mironov, T. Onuma, Y. S. Sato, S. Yoneyama, H. Kokawa

ENG - Materials Processing

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

75 Citations (Scopus)

Abstract

In this work, electron backscatter diffraction (EBSD) and digital image correlation were employed to study tensile behavior of friction-stir welded magnesium alloy AZ31. The character of measured strain patterns indicated the prevalence of basal slip but also suggested significant activity of prism slip. A substantial strain gradient was found lengthways in the stir zone. The failure was shown to be initiated at the weld root and to originate from double {101¯1}−{101¯2} twinning. Crack propagation was influenced by the “onion-ring structure” of the stir zone.

Original language	English
Pages (from-to)	272-281
Number of pages	10
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	679
DOIs	https://doi.org/10.1016/j.msea.2016.10.036
Publication status	Published - 2017 Jan 2

Keywords

EBSD
Magnesium alloys
Strain measurement
Thermomechanical processing
Twinning
Welding

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10.1016/j.msea.2016.10.036

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title = "Tensile behavior of friction-stir welded AZ31 magnesium alloy",

abstract = "In this work, electron backscatter diffraction (EBSD) and digital image correlation were employed to study tensile behavior of friction-stir welded magnesium alloy AZ31. The character of measured strain patterns indicated the prevalence of basal slip but also suggested significant activity of prism slip. A substantial strain gradient was found lengthways in the stir zone. The failure was shown to be initiated at the weld root and to originate from double {101¯1}−{101¯2} twinning. Crack propagation was influenced by the “onion-ring structure” of the stir zone.",

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author = "S. Mironov and T. Onuma and Sato, {Y. S.} and S. Yoneyama and H. Kokawa",

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T1 - Tensile behavior of friction-stir welded AZ31 magnesium alloy

AU - Mironov, S.

AU - Onuma, T.

AU - Sato, Y. S.

AU - Yoneyama, S.

AU - Kokawa, H.

PY - 2017/1/2

Y1 - 2017/1/2

N2 - In this work, electron backscatter diffraction (EBSD) and digital image correlation were employed to study tensile behavior of friction-stir welded magnesium alloy AZ31. The character of measured strain patterns indicated the prevalence of basal slip but also suggested significant activity of prism slip. A substantial strain gradient was found lengthways in the stir zone. The failure was shown to be initiated at the weld root and to originate from double {101¯1}−{101¯2} twinning. Crack propagation was influenced by the “onion-ring structure” of the stir zone.

AB - In this work, electron backscatter diffraction (EBSD) and digital image correlation were employed to study tensile behavior of friction-stir welded magnesium alloy AZ31. The character of measured strain patterns indicated the prevalence of basal slip but also suggested significant activity of prism slip. A substantial strain gradient was found lengthways in the stir zone. The failure was shown to be initiated at the weld root and to originate from double {101¯1}−{101¯2} twinning. Crack propagation was influenced by the “onion-ring structure” of the stir zone.

KW - EBSD

KW - Magnesium alloys

KW - Strain measurement

KW - Thermomechanical processing

KW - Twinning

KW - Welding

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VL - 679

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EP - 281

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Tensile behavior of friction-stir welded AZ31 magnesium alloy

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Keywords

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