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Published in:
2016 | OriginalPaper | Chapter
Mechanical Characterization and Corrosion Testing of X608 Al Alloy
Authors : Ramprashad Prabhakaran, Jung-Pyung Choi, Elizabeth Stephens, David Catalini, Curt Lavender, Aashish Rohatgi
Published in: Light Metals 2016
Publisher: Springer International Publishing
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This paper describes the mechanical characterization and corrosion testing of X608 Al alloy that is being considered for A-pillar covers for heavy-duty truck applications. Recently, PNNL developed a thermo-mechanical process to stamp A-pillar covers at room temperature using this alloy, and the full-size prototype was successfully stamped by a tier-1 supplier. This study was conducted to obtain additional important information related to the newly developed forming process, and to further improve its mechanical properties. The solutionization temperature, pre-strain and paint-bake heat-treatment were found to influence the alloy’s fabricability and mechanical properties. Natural aging effect on the formability was investigated by limiting dome height (LDH) tests. Preliminary corrosion experiments showed that the employed thermo-mechanical treatments did not significantly affect the corrosion behavior of Al X608.