| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Mechanisms and Mitigation of Aqueous Corrosion and High-temperature Oxidation
|
| Presentation Title |
Corrosion Evaluation of Additively Manufactured Al-Cu-X Alloys |
| Author(s) |
Jiheon Jun, Alex Plotkowski, Amit Shyam, J. Allen Haynes, Yi Feng Su |
| On-Site Speaker (Planned) |
Yi Feng Su |
| Abstract Scope |
Additively manufactured (AM) Al-Ce-X alloys have potential to be utilized in manufacturing of advanced power train components in future automotive designs. These AM Al-Ce-X alloys exhibit unique microstructures distinguished from cast aluminum alloys with similar compositions, which could alter their aqueous corrosion resistance. To investigate the corrosion behavior of AM Al-Ce-X alloys, electrochemical impedance spectroscopy (EIS) was applied along with anodic and cathodic polarization techniques in 3.5 wt.% NaCl. Corrosion reaction resistance, determined from EIS, as well as anodic and cathodic currents were compared between AM and cast Al-Ce-X alloys for comprehensive corrosion analysis. Microscopic and chemical characterization of pre- and post-corrosion specimens are also underway to identify the microstructural feature(s) associated with corrosion susceptibility in the alloys.
This work was supported by U.S. DOE Vehicle Technology Office, Powertrain Materials Core Program. |