Journal
MATERIALS
Volume 14, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/ma14143802
Keywords
high-entropy alloys; mechanical alloying; coatings; adhesion
Categories
Funding
- University Politehnica of Bucharest-PubArt Programme
Ask authors/readers for more resources
By processing high-purity metal powders using solid-state processing and electro spark deposition, a high-entropy alloy coating was created. Pull-Off testing confirmed good adhesion of the coating to the substrate, and corrosion resistance testing showed excellent performance.
High-entropy alloys could provide a solution for corrosion resistance due to their impressive properties. Solid-state processing of high purity Co, Cr, Fe, Ni and Mo metallic powders and consolidation resulted in a bulk material that was further machined into electro spark deposition electrodes. After the stainless steel substrate surface preparation, thin successive layers of the high-entropy alloy were deposited and Pull-Off testing was performed on the newly obtained coating, for a better understanding of the adhesion efficiency of this technique. Good adhesion of the coating to the substrate was proved by the test and no cracks or exfoliations were present. Corrosion resistance testing was performed in a liquid solution of 3.5 wt.% NaCl for 6 h at room temperature and the results obtained validated our hypothesis that CoCrFeNiMo0.85 high-entropy alloys could provide corrosion resistance when coating a stainless steel substrate.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available