|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Mechanical Characterization and Corrosion Testing of X608 Aluminum Alloy
||Ramprashad Prabhakaran, Jung-Pyung Choi, Elizabeth Stephens, David Catalini, Curt Lavender, Aashish Rohatgi
|On-Site Speaker (Planned)
This presentation will describe 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 has developed a thermo-mechanical process to stamp A-pillar covers at room temperature in this alloy with full-size prototype being stamped by a tier-1 supplier. The solutionization temperature, pre-strain and paint-bake heat-treatment were found to influence the alloy’s tensile properties and electrical conductivity. The current work further investigates the heat-treatment of the alloy sheet and the resulting formability, electrical conductivity, and corrosion behavior. Formability was investigated by limiting dome height (LDH) tests while electrical conductivity was measured using the eddy-current method. The corrosion behavior was investigated by using immersion and electrochemical testing techniques in various environments along with accelerated cyclic corrosion tests. These results will be discussed in the light of microstructural changes occurring in the alloy.
||Planned: Light Metals Volume