Grain boundary sliding during friction stir spot welding of an aluminum alloy

A. P. Gerlich; T. Shibayanagi

doi:10.1016/j.scriptamat.2008.10.006

Grain boundary sliding during friction stir spot welding of an aluminum alloy

A. P. Gerlich^*, T. Shibayanagi

^*Corresponding author for this work

Materials Design and Engineering

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

27 Scopus citations

Abstract

The grain and dislocation structures in an Al-4.3Cu-1.4Mg alloy friction stir spot weld made using tool rotational speeds from 750 to 1500 rpm are investigated. The stir zone region contains grains with random boundaries, where grains with dimensions <250 nm are free of dislocations, and grains having average dimensions >500 nm possessed high dislocation densities. Dislocation annihilation is negligible during the spot welding process. Grain boundary sliding accounts for the low dislocation density in grains having sizes <250 nm. Crown

Original language	English
Pages (from-to)	236-239
Number of pages	4
Journal	Scripta Materialia
Volume	60
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2008.10.006
State	Published - 2009/02

Keywords

Al 2024
Friction stir
Grain boundary sliding
Spot welding

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2008.10.006

Cite this

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title = "Grain boundary sliding during friction stir spot welding of an aluminum alloy",

abstract = "The grain and dislocation structures in an Al-4.3Cu-1.4Mg alloy friction stir spot weld made using tool rotational speeds from 750 to 1500 rpm are investigated. The stir zone region contains grains with random boundaries, where grains with dimensions <250 nm are free of dislocations, and grains having average dimensions >500 nm possessed high dislocation densities. Dislocation annihilation is negligible during the spot welding process. Grain boundary sliding accounts for the low dislocation density in grains having sizes <250 nm. Crown",

keywords = "Al 2024, Friction stir, Grain boundary sliding, Spot welding",

author = "Gerlich, {A. P.} and T. Shibayanagi",

note = "Funding Information: The authors acknowledge the financial support from the Natural Sciences and Engineering Research Council of Canada during this project. Discussions with Prof. T. Langdon are also greatly appreciated. ",

year = "2009",

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doi = "10.1016/j.scriptamat.2008.10.006",

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pages = "236--239",

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T1 - Grain boundary sliding during friction stir spot welding of an aluminum alloy

AU - Gerlich, A. P.

AU - Shibayanagi, T.

N1 - Funding Information: The authors acknowledge the financial support from the Natural Sciences and Engineering Research Council of Canada during this project. Discussions with Prof. T. Langdon are also greatly appreciated.

PY - 2009/2

Y1 - 2009/2

N2 - The grain and dislocation structures in an Al-4.3Cu-1.4Mg alloy friction stir spot weld made using tool rotational speeds from 750 to 1500 rpm are investigated. The stir zone region contains grains with random boundaries, where grains with dimensions <250 nm are free of dislocations, and grains having average dimensions >500 nm possessed high dislocation densities. Dislocation annihilation is negligible during the spot welding process. Grain boundary sliding accounts for the low dislocation density in grains having sizes <250 nm. Crown

AB - The grain and dislocation structures in an Al-4.3Cu-1.4Mg alloy friction stir spot weld made using tool rotational speeds from 750 to 1500 rpm are investigated. The stir zone region contains grains with random boundaries, where grains with dimensions <250 nm are free of dislocations, and grains having average dimensions >500 nm possessed high dislocation densities. Dislocation annihilation is negligible during the spot welding process. Grain boundary sliding accounts for the low dislocation density in grains having sizes <250 nm. Crown

KW - Al 2024

KW - Friction stir

KW - Grain boundary sliding

KW - Spot welding

UR - http://www.scopus.com/inward/record.url?scp=56249117331&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2008.10.006

DO - 10.1016/j.scriptamat.2008.10.006

M3 - 学術論文

AN - SCOPUS:56249117331

SN - 1359-6462

VL - 60

SP - 236

EP - 239

JO - Scripta Materialia

JF - Scripta Materialia

IS - 4

ER -

Grain boundary sliding during friction stir spot welding of an aluminum alloy

Abstract

Keywords

ASJC Scopus subject areas

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