Magnetic Property Simulation of Defects in Ferromagnetic Pipes under Magnetization

China Mechanical Engineering

Previous Articles Next Articles

Magnetic Property Simulation of Defects in Ferromagnetic Pipes under Magnetization

ZHANG Lipan1;MA Bingyang1;SONG Kai1;WANG Zhen2

1.Key Laboratory of Nondestructive Testing，Ministry of Education， Nanchang Hangkong University，Nanchang，330063
2.Science and Technology College of Nanchang Hangkong University，Nanchang，330063

Online:2018-08-25 Published:2018-08-27
Supported by:
National Natural Science Foundation of China （No. 51265041）
National Key Scientific Instrument and Equipment Development Project（No. 2013YQ140505）

励磁作用下铁磁管道缺陷磁特性仿真

张丽攀1;马冰洋1;宋凯1;王振2

1.南昌航空大学无损检测技术教育部重点实验室，南昌，330063
2.南昌航空大学科技学院，南昌，330063

基金资助:
国家自然科学基金资助项目（51265041）；
国家重大科学仪器设备开发专项（2013YQ140505）；
国家公益性行业科研专项（201510066）；
无损检测技术教育部重点实验室开放基金资助项目（EW201708252）；
航空科学基金资助项目（GA201708257）
National Natural Science Foundation of China （No. 51265041）
National Key Scientific Instrument and Equipment Development Project（No. 2013YQ140505）

Abstract

Abstract: A 3D model of DC magnetization pipes was built with finite element method.Meanwhile the ferromagnetic material magnetic properties
and the distribution of magnetic permeability around defect areas were analyzed.The effects of magnetization intensity，the thicknesses of the
pipes and the depths of the flaws on magnetic permeability distribution were studied.The results show that the magnetic permeability of the defect
areas is uneven distributed while saturation magnetized，and the internal defects may even cause the magnetic permeability of exterior surface
changing under magnetization.The mechanism of internal defects on the ferromagnetic pipes is revealed，and the applications of the eddy current
testing method are expanded.

Key words: ferromagnetic pipe；magnetization；magnetic permeability；eddy , current testing

摘要： 通过有限元法建立了管道直流磁化的三维模型，分析了励磁状态下铁磁材料的磁特性、缺陷附近材料的磁导率分布特征以及励磁强度、管道厚度、缺陷深度对磁导率分布的影响。结果表明，饱和磁化后缺陷区域的磁导率分布并不均匀，励磁作用下内壁缺陷可引起外表面磁导率的改变，从而揭示了铁磁性管道内部缺陷检出机理，拓展了涡流检测方法的应用范围。

关键词: 铁磁管道, 磁化, 磁导率, 涡流检测

CLC Number:

TG115.28

ZHANG Lipan1;MA Bingyang1;SONG Kai1;WANG Zhen2. Magnetic Property Simulation of Defects in Ferromagnetic Pipes under Magnetization[J]. China Mechanical Engineering.

张丽攀1;马冰洋1;宋凯1;王振2 . 励磁作用下铁磁管道缺陷磁特性仿真[J]. 中国机械工程.

References

[1]康宜华，武新军.数字化磁性无损检测技术[M］．北京：机械工业出版社，2006.
KANG Yihua，WU Xinjun.Digital Magnetic Nondestructive Testing Technology[M］.Beijing：China Machine Press，2006.
[2]任吉林.电磁检测[M］.北京：科学出版社，2001：64-67.
REN Jilin.Electromagnetic Testing[M］.Beijing： Science Press，2001：64-67.
[3]LEE H J，CHAN H C，MIN W N，et al.Eddy Current Testing of Type-439 Stainless Steel Tubin Gusing Magnetic Saturation Technique
[J］.Journal of Mechanical Science and Technology.2012，26 （7）： 2081-2085.
[4]林俊明，赖传理，任吉林.钢管涡流探伤中缺陷信号得相位分辨[J］.无损检测，2011，33（1）：2-8.
LIN Junming，LAI Chuanli，REN Jilin.Phase Distinction in Eddy Current Testing for Steel Tubes[J］.Nondestructive Testing，2011，33（1）：2-8.
[5]熊龙辉，王平.高速漏磁检测中钢轨磁化强度的研究[J］.无损检测，2013（11）：2-6.
XIONG Longhui，WANG Ping.Research on Magnetization of Rail in High-speed Magnetic Flux Leakage Testing[J］.Nondestructive Testing，2013（11）：2-6.
[6]杨理践，张森林，高松巍.钢板厚度对漏磁检测效果的影响[J］.无损检测，2013（10）：10-13.
YANG Lijian，ZHANG Senlin，GAO Songwei.Impact of Sheet Thickness on Magnetic Flux Leakage Inspection[J］.Nondestructive Testing，2013（10）：10-13.
[7]JARVIS R，CAWLEY P，NAGY P B.Current Deflection NDE for the Inspection and Monitoring of Pipes[J］.NDT&E International，2016，81：46-59.
[8]SURESH V，ABUDHAHIR A，DANIEL J.Development of Magnetic Flux Leakage Measuring System for Detection of Defect in Small Diameter Steam Generator Tube[J］.Measurement.2017，95：273-279.
[9]史荣，王雷，王劲东，等.钢丝绳弱磁探伤数值模拟及实验研究[J］.中国机械工程，2013，24（22）：3041-3044.
SHI Rong，WANG Lei，WANG Jindong，et al.Value Simulation and Experimental Study of a Rope Weak Magnetic Flaw Detection[J］.China Mechanical Engineering，2013，24（22）：3041-3044.
[10]冯搏，伍剑波，杨芸，等.钢管纵向伤高速高精漏磁探伤磁化方法[J］. 中国机械工程，2014，25（6）：736-740.
FENG Bo，WU Jianbo，YANG Yun，et al.Research on Magnetization Method for High Speed Precision Magnetic Flux Leakage Testing of Longitudinal Defects in Speed Pipes[J］.China Mechanical Engineering.2014，25（6）：736-740.
[11]宋凯，陈超，康宜华，等.钢管内壁缺陷涡流检测的机理研究[J］.失效分析与预防，2012，7（3）：180-183.
SONG Kai，CHEN Chao，KANG Yihua，et al.Study on Mechanism of Eddy Current Testing for Inner Defect of Steel Pipe[J］.Failure Analysis and Prevention，2012，7（3）：180-183.

Magnetic Property Simulation of Defects in Ferromagnetic Pipes under Magnetization

励磁作用下铁磁管道缺陷磁特性仿真

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 9

Recommended Articles

Metrics

[1]	ZHU Yulong, ZHAO Yingsong, FANG Yang, CHEN Hongen, CHEN Zhenmao, . Rotating Eddy Current Testing for Inspection of Cracks at Hole Edge [J]. China Mechanical Engineering, 2023, 34(08): 883-891.
[2]	XU Peng, ZENG Hongming, ZHU Chenlu, WANG Ping, GENG Ming, XU Yong. High Speed Track Defect Detection Methods Based on Enhanced Magnetic Field Eddy Currents [J]. China Mechanical Engineering, 2021, 32(04): 454-459,466.
[3]	ZHANG Lei1;LIU Wujun3;XIE Shejuan1,4;WANG Xiaogang2;KONG Yuying2;MA Qiang2;CHEN Zhenmao1. Swept-frequency ET and Innovative Feature Extraction of Abrasion Defects for Thimble Tubes in Nuclear Power Plants [J]. China Mechanical Engineering, 2021, 32(01): 18-25.
[4]	YU Xiaojie1;LI Xudong1;XIE Shejuan1;LI Peng2;WANG Hao2,3;CHEN Zhenmao1. ECT Method for Wire Breakage Defects in Wire Ropes [J]. China Mechanical Engineering, 2019, 30(22): 2757-2763.
[5]	LI Kaiyu;GAO Wenjuan;WANG Ping;ZHANG Yanyan;HANG Cheng. Yield Strength Testing Method of Ferromagnetic Materials Based on Pulsed Eddy Current [J]. China Mechanical Engineering, 2019, 30(18): 2143-2149.
[6]	TIAN Mingming1;XIE Shejuan1,2; HAN Jie3,4;LI Peng2;PEI Cuixiang1;CHEN Zhenmao1. A Hybrid PECT/EMAT NDT Based on Wavelet Analysis [J]. China Mechanical Engineering, 2019, 30(16): 1925-1930.
[7]	GE Liang, MIAO Rui, GE Qiuyuan, WU Yizhou. Feature Extraction and Defect Identification of Eddy Current Testing Signals on Narrow Lap Weld [J]. China Mechanical Engineering, 2019, 30(02): 225-229.
[8]	ZHAO Ying;XIE Shejuan;TIAN Mingming;TONG Zongfei;LI Yong;CHEN Zhenmao. Frequency-band-selecting Pulsed Eddy Current Testing Method for Detection of Defects under a Certain Depth Range [J]. China Mechanical Engineering, 2018, 29(06): 639-644.
[9]	Qi Yong, Liu Xiangbiao, Li Yong, Chen Zhenmao, Li Weixin. Pulsed Eddy Current Testing Based on Gradient Magnetic Field Measurement [J]. China Mechanical Engineering, 2014, 25(8): 1108-1112,1135.