INFLUENCE OF STRUCTURAL PARAMETERS ON CORROSION RESISTANCE OF OIL AND GAS FIELD EQUIPMENT

To improve the reliability and durability of mining equipment, it is promising to use micro- and nanostructured metals and alloys, as well as metal-matrix composites. Ordinary and nanostructured samples of aluminum, copper, bronze C95200, an aluminum-magnesium alloy 518.0, and an aluminum-matrix dis...

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Bibliographic Details
Main Authors: Rafail, Apakashev, Mark, Khazin
Format: Article in Journal/Newspaper
Language:Russian
Published: Zenodo 2021
Subjects:
Online Access:https://dx.doi.org/10.5281/zenodo.5901415
https://zenodo.org/record/5901415
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Summary:To improve the reliability and durability of mining equipment, it is promising to use micro- and nanostructured metals and alloys, as well as metal-matrix composites. Ordinary and nanostructured samples of aluminum, copper, bronze C95200, an aluminum-magnesium alloy 518.0, and an aluminum-matrix dispersion-reinforced composite containing 6.3 wt% titanium were studied. Structuring processing of metallic materials was carried out in the liquid phase state. The aluminum-matrix composite was synthesized by powder metallurgy. A model electrolyte solution, containing 30 g / L NaCl and an addition of acetic acid to pH = 4.0, was used as a corrosive medium. Corrosion resistance test base was 144 hours, temperature + 22 ° C, the volume of the solution in the cell with three samples was 500 ml. The relative calculated test error was 5%. A continuous uniform distribution of corrosion damage to the metal surface is observed for all studied samples. In this case, the corrosion rate (П, mm / year) of nanostructured metals and alloys samples is approximately 11% less than the corrosion rate of the same metals and alloys samples that have not undergone structuring treatment. For the aluminum matrix composite, it was noted that the dispersed reinforcement of aluminum with titanium provides an increase in the corrosion resistance of the matrix metal by 9.6%. 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