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    Properties of Friction-Stir Welded Aluminum Alloys 6111 and 5083

    Source: Journal of Engineering Materials and Technology:;2008:;volume( 130 ):;issue: 003::page 31007
    Author:
    W. Gan
    ,
    K. Okamoto
    ,
    S. Hirano
    ,
    K. Chung
    ,
    C. Kim
    ,
    R. H. Wagoner
    DOI: 10.1115/1.2931143
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Friction-stir welding (FSW) promises joints with low porosity, fine microstructures, minimum phase transformation, and low oxidation compared with conventional welding techniques. It is capable of joining combinations of alloys not amenable to conventional welding. Certain combinations of FSW parameters were used to create FSWs of aluminum alloys 5083-H18 and 6111-T4, and the physical weld defects were measured. The mechanical behavior of FSW welds made under the most favorable choice of parameters was determined using tensile tests and hardness measurements and was correlated to the microstructures of the weld and base material. Stir zones (SZs) in the 5083 specimens were much softer than the strain-hardened base materials. SZs in the 6111 material are approximately as hard as the base material. Natural aging of 6111 FSW specimens occurred in some parts of the heat-affected zone and produced hardening for up to 12weeks after welding. Annealing of 5083 FSW specimens produced abnormal grain growth (AGG) for welds produced under certain welding conditions and in certain parts of the weld zone. AGG is more severe for low-heat conditions, i.e., higher tool travel speed but lower rotational speed. The conditions for most favorable FSW are presented, as well as the expected microstructures and mechanical properties, along with the weld conditions that promote AGG.
    keyword(s): Welding , Welded joints , Aluminum alloys , Heat , Temperature AND Friction ,
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      Properties of Friction-Stir Welded Aluminum Alloys 6111 and 5083

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    http://yetl.yabesh.ir/yetl1/handle/yetl/138069
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    contributor authorW. Gan
    contributor authorK. Okamoto
    contributor authorS. Hirano
    contributor authorK. Chung
    contributor authorC. Kim
    contributor authorR. H. Wagoner
    date accessioned2017-05-09T00:28:11Z
    date available2017-05-09T00:28:11Z
    date copyrightJuly, 2008
    date issued2008
    identifier issn0094-4289
    identifier otherJEMTA8-27109#031007_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/138069
    description abstractFriction-stir welding (FSW) promises joints with low porosity, fine microstructures, minimum phase transformation, and low oxidation compared with conventional welding techniques. It is capable of joining combinations of alloys not amenable to conventional welding. Certain combinations of FSW parameters were used to create FSWs of aluminum alloys 5083-H18 and 6111-T4, and the physical weld defects were measured. The mechanical behavior of FSW welds made under the most favorable choice of parameters was determined using tensile tests and hardness measurements and was correlated to the microstructures of the weld and base material. Stir zones (SZs) in the 5083 specimens were much softer than the strain-hardened base materials. SZs in the 6111 material are approximately as hard as the base material. Natural aging of 6111 FSW specimens occurred in some parts of the heat-affected zone and produced hardening for up to 12weeks after welding. Annealing of 5083 FSW specimens produced abnormal grain growth (AGG) for welds produced under certain welding conditions and in certain parts of the weld zone. AGG is more severe for low-heat conditions, i.e., higher tool travel speed but lower rotational speed. The conditions for most favorable FSW are presented, as well as the expected microstructures and mechanical properties, along with the weld conditions that promote AGG.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleProperties of Friction-Stir Welded Aluminum Alloys 6111 and 5083
    typeJournal Paper
    journal volume130
    journal issue3
    journal titleJournal of Engineering Materials and Technology
    identifier doi10.1115/1.2931143
    journal fristpage31007
    identifier eissn1528-8889
    keywordsWelding
    keywordsWelded joints
    keywordsAluminum alloys
    keywordsHeat
    keywordsTemperature AND Friction
    treeJournal of Engineering Materials and Technology:;2008:;volume( 130 ):;issue: 003
    contenttypeFulltext
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