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首页> 外文期刊>Journal of Corrosion Science and Engineering >（v16preprint54）The Relationship between Soil Resistivity and Corrosion Growth in Tropical Region
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（v16preprint54）The Relationship between Soil Resistivity and Corrosion Growth in Tropical Region

机译：（V16Preprint54）土壤电阻率与热带地区腐蚀生长的关系

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摘要

Soil resistivity influences the corrosion of metals installed underground and can serve as an indicator of soil corrosiveness. From corrosion engineering perspective, the lower the resistivity, the higher the corrosivity and vice versa. Soil resistivity is most often measured using Wenner four-electrode method and resistance meter. The aim of this paper is to evaluate the influence of soil resistivity upon metal loss as experienced by corroding steel coupon. The steel coupons were installed underground for duration of 12-months at five different sites in Peninsular Malaysia. Results show that a negative correlation represents the relationship between soil resistivity and corrosion rate. Negative logarithmic model gives the best correlation among corrosion rate and soil resistivity. It also reveals that the relationship is time dependent whereby the longer the steel coupon being exposed to underground environment, the better the correlation. The outcome indicates that the measurement of soil resistivity can act as an early indicator of the potential of corrosion growth rate.
机译：土壤电阻率影响地下安装的金属的腐蚀，可以作为土壤腐蚀性的指标。从腐蚀工程角度来看，电阻率越低，腐蚀性越高，反之亦然。使用Wenner四电极方法和电阻表最常测量土壤电阻率。本文的目的是评估腐蚀钢优惠券经验丰富的金属损耗对土壤电阻率的影响。钢优惠券在半岛马来西亚五种不同地点的12个月内安装了12个月的持续时间。结果表明，负相关代表土壤电阻率和腐蚀速率之间的关系。否定对数模型在腐蚀速率和土壤电阻率之间提供了最佳相关性。它还揭示了这种关系是时间依赖的，从而越长的钢优惠券暴露于地下环境，相关性越好。结果表明土壤电阻率的测量可以作为腐蚀生长速率的潜力的早期指标。

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  • 作者

    Lim Kar Sing; Nordin Yahaya; Siti Rabeah Othman;

  • 作者单位

    Reliability Engineering and Safety Assessment (RESA) Department of Structures and Materials Universiti Teknologi Malaysia Skudai Malaysia.;

    Reliability Engineering and Safety Assessment (RESA) Department of Structures and Materials Universiti Teknologi Malaysia Skudai Malaysia.;

    Reliability Engineering and Safety Assessment (RESA) Department of Structures and Materials Universiti Teknologi Malaysia Skudai Malaysia.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 冶金技术;
  • 关键词

    Corrosion; pipeline; soil resistivity;

    机译：腐蚀;管道;土壤电阻率;

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