Improved microstructure and properties of 6061 aluminum alloy weldments using a double-sided arc welding process

Y. M. Zhang; C. Pan; A. T. Male

doi:10.1007/s11661-000-0198-8

Improved microstructure and properties of 6061 aluminum alloy weldments using a double-sided arc welding process

Y. M. Zhang, C. Pan, A. T. Male

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89 Scopus citations

Abstract

Due to its popularity and high crack sensitivity, 6061 aluminum alloy was selected as a test material for the newly developed double-sided arc welding (DSAW) process. The microstructure, crack sensitivity, and porosity of DSAW weldments were studied systematically. The percentage of fine equiaxed grains in the fully penetrated welds is greatly increased. Residual stresses are reduced. Porosity in the welds is reduced and individual pores are smaller. It was also found that the shape and size of porosity is related to solidification substructure. In particular, a weld metal zone with equiaxed grains tends to form small and dispersed porosity, whereas elongated porosity tends to occur in columnar grains.

Original language	English
Pages (from-to)	2537-2543
Number of pages	7
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	31
Issue number	10
DOIs	https://doi.org/10.1007/s11661-000-0198-8
State	Published - 2000

Bibliographical note

Funding Information:
This work is supported by the National Science Foundation (Grant No. DMI 9812981) and the Center for Robotics and Manufacturing Systems (CRMS) at the University of Kentucky. The authors express appreciation to Dr. S.B. Zhang for his cooperation in this work.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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10.1007/s11661-000-0198-8

Cite this

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title = "Improved microstructure and properties of 6061 aluminum alloy weldments using a double-sided arc welding process",

abstract = "Due to its popularity and high crack sensitivity, 6061 aluminum alloy was selected as a test material for the newly developed double-sided arc welding (DSAW) process. The microstructure, crack sensitivity, and porosity of DSAW weldments were studied systematically. The percentage of fine equiaxed grains in the fully penetrated welds is greatly increased. Residual stresses are reduced. Porosity in the welds is reduced and individual pores are smaller. It was also found that the shape and size of porosity is related to solidification substructure. In particular, a weld metal zone with equiaxed grains tends to form small and dispersed porosity, whereas elongated porosity tends to occur in columnar grains.",

author = "Zhang, {Y. M.} and C. Pan and Male, {A. T.}",

note = "Funding Information: This work is supported by the National Science Foundation (Grant No. DMI 9812981) and the Center for Robotics and Manufacturing Systems (CRMS) at the University of Kentucky. The authors express appreciation to Dr. S.B. Zhang for his cooperation in this work. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

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doi = "10.1007/s11661-000-0198-8",

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AU - Zhang, Y. M.

AU - Pan, C.

AU - Male, A. T.

N1 - Funding Information: This work is supported by the National Science Foundation (Grant No. DMI 9812981) and the Center for Robotics and Manufacturing Systems (CRMS) at the University of Kentucky. The authors express appreciation to Dr. S.B. Zhang for his cooperation in this work. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2000

Y1 - 2000

N2 - Due to its popularity and high crack sensitivity, 6061 aluminum alloy was selected as a test material for the newly developed double-sided arc welding (DSAW) process. The microstructure, crack sensitivity, and porosity of DSAW weldments were studied systematically. The percentage of fine equiaxed grains in the fully penetrated welds is greatly increased. Residual stresses are reduced. Porosity in the welds is reduced and individual pores are smaller. It was also found that the shape and size of porosity is related to solidification substructure. In particular, a weld metal zone with equiaxed grains tends to form small and dispersed porosity, whereas elongated porosity tends to occur in columnar grains.

AB - Due to its popularity and high crack sensitivity, 6061 aluminum alloy was selected as a test material for the newly developed double-sided arc welding (DSAW) process. The microstructure, crack sensitivity, and porosity of DSAW weldments were studied systematically. The percentage of fine equiaxed grains in the fully penetrated welds is greatly increased. Residual stresses are reduced. Porosity in the welds is reduced and individual pores are smaller. It was also found that the shape and size of porosity is related to solidification substructure. In particular, a weld metal zone with equiaxed grains tends to form small and dispersed porosity, whereas elongated porosity tends to occur in columnar grains.

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Improved microstructure and properties of 6061 aluminum alloy weldments using a double-sided arc welding process

Abstract

Bibliographical note

ASJC Scopus subject areas

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