Article ; Online: Structural stability and oxidation resistance of amorphous TaSi-based ternary alloy coatings
Journal of Non-Crystalline Solids: X, Vol 18, Iss , Pp 100183- (2023)
2023
Abstract: Amorphous metal coatings have great potential for corrosion protection but finding alloy compositions which form a stable amorphous structure can be an overwhelming task. We use combinatorial magnetron sputtering and X-ray analysis to map out the phase ... ...
| Abstract | Amorphous metal coatings have great potential for corrosion protection but finding alloy compositions which form a stable amorphous structure can be an overwhelming task. We use combinatorial magnetron sputtering and X-ray analysis to map out the phase space of TaSiM (M = Al, Cr, Fe, Ti) alloys in order to identify amorphous compositions. Atomic percentages of above 10–15 at.% of each constituent yield amorphous coatings in all four systems. TaSiAl coatings are stable when annealed in air up to and including 550 °C whereas TaSiFe, TaSiCr and TaSiTi remain amorphous up to and including 750 °C. In particular, Ta35Si15Cr50 is almost unchanged at that temperature, and has a stable surface oxide shell less than 20 nm in thickness at 650 °C. The stability of these materials at high temperatures means that they could be suitable as anti-corrosion coatings in high temperature applications. |
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| Keywords | Amorphous ; Thin films ; Metallic glass ; Corrosion resistance ; Crystallization temperature ; Combinatorial ; Materials of engineering and construction. Mechanics of materials ; TA401-492 ; Chemistry ; QD1-999 |
| Subject code | 669 |
| Language | English |
| Publishing date | 2023-06-01T00:00:00Z |
| Publisher | Elsevier |
| Document type | Article ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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