Low-frequency magnetic incremental permeability for the non-destructive evaluation of hardness profile after carburization treatment with large case hardening depth

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

Ndt & E International Pub Date : 2024-10-19 DOI:10.1016/j.ndteint.2024.103248

Hicham Lberni , Benjamin Ducharne , Hélène Petitpré , Jean-François Mogniotte , Yves Armand Tene Deffo , Fan Zhang , Christophe Gallais

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Abstract

Carburization treatment with large case hardening depth is a technical process to enhance steel parts' surface hardness and wear resistance. Accurate evaluation of this metallurgical treatment is crucial to prevent critical mechanical failures. Low-frequency magnetic incremental permeability (LF-MIP) emerges as a non-destructive surface technique well-suited for this purpose in the case of ferromagnetic parts. Although correlations between magnetic indicators obtained through LF-MIP characterization and deep carburization treatment have been demonstrated, they remain qualitative. In this study, we propose an innovative method to assess the entire hardness profile based on LF-MIP characterization. Experimental results and simulation data are integrated into a reference chart used for post-processing, enabling the prediction of hardness profiles for specimens in a blind test. With a relative Euclidean distance of less than 6 % between the method's predictions and destructive tests conducted on specimens treated with medium, deep, and intense intensities, we consider the method validated.

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用于无损评估大表面淬火深度渗碳处理后硬度曲线的低频磁增量渗透技术

大表面硬化深度渗碳处理是一种提高钢零件表面硬度和耐磨性的技术工艺。准确评估这种冶金处理对防止关键机械故障至关重要。低频磁增量渗透率（LF-MIP）是一种非破坏性表面技术，非常适合铁磁性零件。虽然通过 LF-MIP 表征获得的磁性指标与深渗碳处理之间的相关性已经得到证实，但它们仍然是定性的。在本研究中，我们提出了一种基于 LF-MIP 表征评估整个硬度曲线的创新方法。实验结果和模拟数据被整合到一个用于后处理的参考图表中，从而能够预测盲测试样的硬度曲线。由于该方法的预测结果与对试样进行中度、深度和强度处理后进行的破坏性试验之间的相对欧氏距离小于 6%，因此我们认为该方法是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.