Microstructure and Residual Stress in Rotary Friction Welded Dissimilar Metals of AA7020 Aluminium Alloy with 316L Steel
Autor: | Michael Hofmann, H.-G. Brokmeier, Martin Mueller, Yuan Ding Huang, Wei Min Gan, Armin Kriele, Christian Randau, Volker Ventzke |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy Weld line 02 engineering and technology Welding 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences law.invention Shear (geology) Mechanics of Materials law Residual stress visual_art 0103 physical sciences Ultimate tensile strength Aluminium alloy visual_art.visual_art_medium General Materials Science Friction welding Composite material 0210 nano-technology |
Zdroj: | Gan, W.; Hofmann, M.; Ventzke, V.; Randau, C.; Huang, Y.; Kriele, A.; Brokmeier, H.-G.; Müller, M.: Microstructure and Residual Stress in Rotary Friction Welded Dissimilar Metals of AA7020 Aluminium Alloy with 316L Steel. In: Sommitsch C.; Ionescu M.; Mishra B.; Mishra B.; Kozeschnik E.; Chandra T. (eds.): Materials Science Forum. Vol. 879 Zürich-Stafa: Trans Tech Publications, 2017. 572-577. (DOI: /10.4028/www.scientific.net/MSF.879.572) (ISBN: 978-303571129-5) |
ISSN: | 0255-5476 |
Popis: | Rotary friction welding (RFW) was used in the current study to join the dissimilar metals AA7020-T6 aluminium alloy and 316L steel. Neutron diffraction was performed to investigate the texture gradient around the weld line and to map the residual stress over the whole specimen. The texture analysis showed a weak shear component near the bond line of AA7020-T6-T6 side which indicated a plastic deformation of AA7020-T6 during welding. The shear bands were also observed in optical microstructures. Relatively high tensile residual stresses were observed near the bond line on the AA7020-T6 side, which were in-homogeneously distributed from the perimeter to the rod centre, while high compressive residual stresses were found in the sample centre at the bond line in the 316L steel. |
Databáze: | OpenAIRE |
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