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<p>The results of fatigue tests of 15Kh2HМF steel full-scale sucker rods samples in various corrosive environments are presented and compared with 20N2M, 15Kh2NМF and 15N3MA steels samples. The limited endurance limit of the tested 15Kh2HМF steel rods in the formation water is by 22&#xa0;and 12% lower than that of 20N2М and 15Kh2NМF steels, respectively, and in the environment simulating the action of H<sub>2</sub>S, it is lower by 36&#xa0;and 35%. The method of sucker complex surface strengthening, which combines shot blasting and deposition of metal-polymer coatings, was developed and tested. The high efficiency of the latter is shown.</p>

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Corrosion-fatigue resistance of sucker rods with metallopolymer coatings

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • H. V. Krechkovska,
  • Ya. T. Fedorovych,
  • B. V. Kopei,
  • I. B. Kopei,
  • T. P. Venhrynyuk

摘要

The results of fatigue tests of 15Kh2HМF steel full-scale sucker rods samples in various corrosive environments are presented and compared with 20N2M, 15Kh2NМF and 15N3MA steels samples. The limited endurance limit of the tested 15Kh2HМF steel rods in the formation water is by 22 and 12% lower than that of 20N2М and 15Kh2NМF steels, respectively, and in the environment simulating the action of H2S, it is lower by 36 and 35%. The method of sucker complex surface strengthening, which combines shot blasting and deposition of metal-polymer coatings, was developed and tested. The high efficiency of the latter is shown.