Abstract
High Pressure Die Cast (HPDC) Al alloys are of interest as automotive structural materials. Owing to the unique processing conditions, HPDC Al alloys may exhibit distinct microstructures compared to other cast automotive Al alloys. In this work, we are evaluating corrosion behavior of several HDPC Al alloys with varied chemical compositions in comparison with non-HPDC commercial Al cast alloy(s) using electrochemical impedance and polarization techniques, and long-term exposure sample characterization in typical 3.5 wt.% NaCl with and without HCl addition to lower pH. A lower pH NaCl solution is used to increase the frequency of corrosion attack growth for collection of statistical corrosion depth data. The key results will be discussed to allow semi-quantitative comparison of HPDC Al alloy resistance against corrosion initiation and growth.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call