Barkhausen noise emission of naval steel: The impact of seawater corrosion coverage and depth

IF 4.1 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Ndt & E International Pub Date : 2024-12-28 DOI:10.1016/j.ndteint.2024.103319

P. Vourna , N.D. Papadopoulos , P.P. Falara , E. Hristoforou

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Abstract

The study examines the corrosion behavior of shipbuilding steel in an artificial marine environment. The steel samples were submerged in artificial saltwater for varying periods, and the corrosion behavior was examined using traditional methods like open circuit potential tests, metallographic observation and surface roughness assessment. The non-destructive magnetic approach using Barkhausen noise was also used. The corrosion process involves the creation of iron oxides and hydroxides, with the rate of corrosion linked to mass reduction. The surface roughness and corrosion depth increase with longer exposure to the corrosive environment. MBN_max drop gradually over time in artificial seawater, while MBN_PP and MBN_FWHM are increased, presenting a linear correlation. The behaviour of magnetic parameters resent a similar trend both in RD and TD. Both MBN_max and MBN_FWHM measurements offer useful insights into the corrosion process and the role of the corrosion layer in the ferromagnetic matrix.

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来源期刊

Ndt & E International 工程技术-材料科学：表征与测试

CiteScore

7.20

自引率

9.50%

发文量

121

审稿时长

55 days

期刊介绍： NDT&E international publishes peer-reviewed results of original research and development in all categories of the fields of nondestructive testing and evaluation including ultrasonics, electromagnetics, radiography, optical and thermal methods. In addition to traditional NDE topics, the emerging technology area of inspection of civil structures and materials is also emphasized. The journal publishes original papers on research and development of new inspection techniques and methods, as well as on novel and innovative applications of established methods. Papers on NDE sensors and their applications both for inspection and process control, as well as papers describing novel NDE systems for structural health monitoring and their performance in industrial settings are also considered. Other regular features include international news, new equipment and a calendar of forthcoming worldwide meetings. This journal is listed in Current Contents.