镍基高温合金GH4169蠕变状态的涡流tmr测试

IF 4.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Ndt & E International Pub Date : 2025-06-16 DOI:10.1016/j.ndteint.2025.103458

Zhaoyuan Xu , Jianbo Wu , Erlong Li , Zhe Wang , Jian Tang , Yuanhong Tao

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引用次数: 0

摘要

高温合金在暴露于长时间高温和应力下的关键部件中是必不可少的。然而，蠕变损伤有可能降低材料性能并导致结构破坏。提出了利用隧道磁电阻（TMR）传感器对镍基高温合金GH4169 （US Inconel 718）蠕变状态进行涡流检测的方法。采用特殊设计的涡流- tmr探头检测蠕变损伤引起的电导率衰减。利用后处理从信号数据中提取频率特征分量，检测细微的磁扰动，从而对蠕变损伤状态进行定量评估。在试件上进行的实验通过建立特征与蠕变寿命分数之间的相关性来证明其有效性。该研究为精确、高效地评估高温合金结构蠕变损伤状态提供了一种创新方法，有助于高温合金结构的整体安全性评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Creep state assessment of nickel-based superalloy GH4169 using eddy current-TMR testing

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Creep state assessment of nickel-based superalloy GH4169 using eddy current-TMR testing

Superalloys are essential in critical components exposed to prolonged high temperatures and stress. However, creep damage risks degrading material properties and leading to structural failure. This paper proposed eddy current testing for creep state assessment of nickel-based superalloy GH4169 (US Inconel 718) using the tunneling magnetoresistance (TMR) sensor. A specially designed eddy current-TMR probe is employed to detect the attenuation in electrical conductivity caused by creep damage. Post-processing is utilized to extract frequency feature components from signal data and detect subtle magnetic perturbations, allowing for a quantitative assessment of the creep damage state. Experiments conducted on specimens demonstrate the efficacy by establishing a correlation between features and creep life fractions. The study provides an innovative approach for precise and efficient creep damage state evaluation, contributing to the overall safety assessment of superalloy structures.

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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.