Scholarlink

<p>The corrosion behavior of X52 steel in synthetic seawater was investigated under varying hydrostatic pressures (0.10&#xa0;MPa to 20.68&#xa0;MPa) and temperatures (3.97&#xa0;°C to 26.41&#xa0;°C). This study utilized potentiodynamic polarization measurements, electrochemical impedance spectroscopy, and weight loss assessments to evaluate corrosion rates. Scanning electron microscopy and X-ray diffraction analysis were employed to examine the corroded morphologies and corrosion products. The electrochemical results indicated that both the corrosion current and double-layer capacitance decreased with increasing hydrostatic pressure and decreasing temperature. Consequently, lower corrosion rates were observed at higher pressures and lower temperatures. The corrosion products primarily consisted of hematite at all pressures and temperatures, except at 0.10&#xa0;MPa and 6.89&#xa0;MPa, where the predominant products were maghemite and goethite. Thus, this research demonstrates that the corrosion mechanisms remained almost similar regardless the pressure and temperature under study, since the corrosion products obtained were almost the same.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effects of hydrostatic pressure and temperature on the corrosion behavior of X52 pipeline steel in a simulated deep-sea environment

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年4月10日

查看全文
  • Enrique López-Baltazar,
  • R. González-Parra,
  • A. Barba,
  • Miguel Ángel Hernández Gallegos

摘要

The corrosion behavior of X52 steel in synthetic seawater was investigated under varying hydrostatic pressures (0.10 MPa to 20.68 MPa) and temperatures (3.97 °C to 26.41 °C). This study utilized potentiodynamic polarization measurements, electrochemical impedance spectroscopy, and weight loss assessments to evaluate corrosion rates. Scanning electron microscopy and X-ray diffraction analysis were employed to examine the corroded morphologies and corrosion products. The electrochemical results indicated that both the corrosion current and double-layer capacitance decreased with increasing hydrostatic pressure and decreasing temperature. Consequently, lower corrosion rates were observed at higher pressures and lower temperatures. The corrosion products primarily consisted of hematite at all pressures and temperatures, except at 0.10 MPa and 6.89 MPa, where the predominant products were maghemite and goethite. Thus, this research demonstrates that the corrosion mechanisms remained almost similar regardless the pressure and temperature under study, since the corrosion products obtained were almost the same.