In-situ dynamic monitoring of phase transformation in steels using a multi-frequency electromagnetic sensor

被引：3
|
作者：
Zhou, L. [1 ]
Jacobs, W. [2 ]
Wu, F. [1 ]
Jolfaei, M. [1 ]
Davis, C. L. [1 ]
机构：
[1] Univ Warwick, WMG, Coventry CV4 7AL, England
[2] Primetals Technol Ltd, Christchurch BH23 6EW, England
来源：
NDT & E INTERNATIONAL | 2023年 / 139卷
基金：
英国工程与自然科学研究理事会;
关键词：
Dynamic transformation measurement; Steel microstructure; EM sensors; Relative magnetic permeability; FE modelling; PEARLITIC STEELS; STAINLESS-STEEL; MICROSTRUCTURE; PERMEABILITY; FRACTION; BEHAVIOR;
D O I：
10.1016/j.ndteint.2023.102918
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An industrial-scale electromagnetic (EM) sensor is employed to non-destructively and dynamically monitor the microstructural phase transformation for mild steel samples with different thicknesses (3 mm, 6 mm, and 10 mm), high carbon steel (0.76 wt% C) and 2.25Cr-1Mo steel plates. The continuous cooling process of these samples in ambient air (cooling rate of 0.99-7.53 degrees C/s) on a run-out table is examined. To determine the phase fractions based on the EM sensor signal and measured temperature, a finite element (FE) model for the EM sensor is utilised. The obtained phase fractions are further validated by conducting dilatometry measurements inde-pendently, confirming the accuracy of the transformation behaviour and phase fraction determination derived from the EM sensor readings.
引用
收藏
页数：8
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