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Abstract <p>Long-term exploitation at high temperatures of steel components leads to degradation of the microstructure, which causes a decrease in their mechanical properties and can reduce their life cycle. In practice, the study of the obtained microstructures is carried out by mechanical tests and metallographic analysis. The application of nondestructive methods could increase the possibilities of monitoring the quality of the elements. The aim of this study is to identify the microstructure degradation of heat-resistant low-alloy low-carbon steel 12Cr1MoV using the magnetic noise method. Magnetic noise parameters such as root mean square voltage (RMS) and BN envelope parameters are analyzed to identify the undesirable microstructures variations.</p>

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Multiparameter Evaluation of Magnetic Barkhausen Noise in Low Alloy High-Temperature Steel 12Cr1MoV after Thermal Aging

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Y. P. Ivanova,
  • I. St. Ivanov,
  • Vl. V. Kamenov,
  • B. G. Velev

摘要

Abstract

Long-term exploitation at high temperatures of steel components leads to degradation of the microstructure, which causes a decrease in their mechanical properties and can reduce their life cycle. In practice, the study of the obtained microstructures is carried out by mechanical tests and metallographic analysis. The application of nondestructive methods could increase the possibilities of monitoring the quality of the elements. The aim of this study is to identify the microstructure degradation of heat-resistant low-alloy low-carbon steel 12Cr1MoV using the magnetic noise method. Magnetic noise parameters such as root mean square voltage (RMS) and BN envelope parameters are analyzed to identify the undesirable microstructures variations.