Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8011856 | Transactions of Nonferrous Metals Society of China | 2017 | 16 Pages |
Abstract
Plasma electrolytic oxidation (PEO) coatings developed under voltage-controlled mode on various commercial wrought, gravity cast and rheocast aluminium alloys were discussed with respect to enhancement of their tribological and corrosion performance and minimization of the PEO energy consumption. It is demonstrated that use of conventional porous anodic film precursors reduces the PEO energy consumption by up to 50%. The wear of 6082 alloy with PEO coatings with added α-Al2O3 particles is two times lower compared with electrolytic hard chrome. The long-term corrosion resistance of the PEO-coated A356 rheocast alloy is enhanced via use of a precursor and hydrophobic post-treatment.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
E. MATYKINA, R. ARRABAL, M. MOHEDANO, B. MINGO, J. GONZALEZ, A. PARDO, M.C. MERINO,