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Material properties of ultra-high strength aluminium alloys: a comparative study of various material suppliers

  • In the present work the influence of industry-standard heat treatment on ultra-high strength aluminium alloys has been investigated under terms of various forming processes. For this purpose, a scaled side impact beam was formed out of AA7075 via Hotforming and W-Temper techniques and subjected to a heat treatment process. The test material was taken from several material suppliers in order to identify any variation of the mechanical properties. Based on uniaxial tensile tests the final material properties were evaluated and compared. Using the W-Temper and Hotforming process, the parts produced without a subsequent heat treatment show no influence concerning the suppliers. A significant difference of the material behaviour can be seen if single-step paint bake cycle is applied. Here, the ultimate tensile strength (UTS) values and those for yield strength vary up to 9% and 16% respectively.

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Metadaten
Author:Michael Schmiedt, Julian Schlosser, Robert Schneider, Wolfgang Rimkus, David K. Harrison
Institutional Author:Michael Schmiedt
Institutional Author:Julian Schlosser
Institutional Author:Wolfgang Rimkus
URN:urn:nbn:de:bsz:944-opus4-10123
Source Title (English):Aluminium
Document Type:Article
Language:English
Year of Completion:2020
Release Date:2020/11/11
Issue:7-8
First Page:50
Last Page:52
Licence (German):License LogoVer√∂ffentlichungsvertrag f√ľr Publikationen mit Print on Demand