|About this Abstract
||Materials Science & Technology 2019
||Ultra High Performance Metallic Systems for Aerospace, Defense, and Automotive Applications
||Influence of Equal-Channel Angular Pressing on the microstructure, the corrosion and the fatigue-corrosion behavior of a 6xxx aluminum alloy for automotive conductors
||Clement Rochet, Skyler L. Davis, Adrien Laurino, Jean-Paul Harouard, Babak Arfaei, Terry C. Lowe, Gregory Odemer, Muriel Veron, Christine Blanc
|On-Site Speaker (Planned)
Aluminum alloys have been considered recently as a potential alternative to copper for automotive electrical wires. To increase their electrical conductivity, Equal Channel Angular Pressing (ECAP) was combined with thermal treatments to provide samples with enhanced electron mobility for this study. However, during in-service conditions, wires may suffer from corrosion and fatigue damages. Therefore, the main objective of this paper is to achieve a better understanding of the influence of ECAP on the corrosion and the fatigue-corrosion resistance of a 6xxx aluminum alloy in relation to its microstructure. The influence of ECAP on the microstructure was characterized using scanning and transmission electron microscopy. Then, electrochemical methods were used to determine the corrosion susceptibility of samples processed by ECAP. Finally, a full characterization of the fatigue and fatigue-corrosion behavior was performed, before and after ECAP. The results showed an influence of ECAP on the corrosion and fatigue-corrosion resistance of the alloy.
||Definite: At-meeting proceedings