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Microstructure and tensile properties of friction welded aluminum alloy AA7075-T6
H. Khalid Rafi, , , K. Prasad Rao
Published in
2010
Volume: 31
   
Issue: 5
Pages: 2375 - 2380
Abstract
Solid-state welding processes like friction welding and friction stir welding are now being actively considered for welding aluminum alloy AA7075. In this work, friction welding of AA7075-T6 rods of 13 mm diameter was investigated with an aim to understand the effects of process parameters on weld microstructure and tensile properties. Welds made with various process parameter combinations (incorporating Taguchi methods) were subjected to tensile tests. Microstructural studies and hardness tests were also conducted. The results show that sound joints in AA7075-T6 can be achieved using friction welding, with a joint efficiency of 89% in as-welded condition with careful selection of process parameters. The effects of process parameters are discussed in detail based on microstructural observations. © 2009 Elsevier Ltd. All rights reserved.
About the journal
JournalMaterials and Design
ISSN02641275
Open AccessNo
Concepts (19)
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    HARDNESS TEST
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    Micro-structural
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    Microstructural observations
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    Process parameters
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    SOLID-STATE WELDING PROCESS
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    Tensile tests
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    WELD MICROSTRUCTURES
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    Aluminum
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    Aluminum alloys
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    ALUMINUM METALLURGY
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    Friction
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    HARDNESS TESTING
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    Microstructure
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    PRESSURE WELDING
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    Taguchi methods
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    Tensile testing
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    Tribology
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    Welds
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    Friction stir welding