One of the effective and real ways to increase the corrosion resistance of a material is to increase its tendency to passivation and increase the stability of a passive state. As a rule, this reduces the effect of anticorrosive alloying of Al and Fe with metals, which, despite the higher electrochemical activity, have an increased tendency to passivation. It is known that, along with the chemical composition, the structure of alloys has a significant effect on the corrosion properties. Resistance to general and pitting corrosion of microcrystalline aluminum-based alloys can be both higher and lower than the resistance of alloys obtained by the standard smelting method. To assess the corrosion resistance of rapidly quenched alloys of the Al-Co-Zr system in a NaCl solution, the values of the corrosion rate by weight loss were calculated.

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