Thermo-magneto-elastoplastic coupling model of metal magnetic memory testing method for ferromagnetic materials

2018 ◽  
Vol 123 (14) ◽  
pp. 145102 ◽  
Author(s):  
Pengpeng Shi ◽  
Pengcheng Zhang ◽  
Ke Jin ◽  
Zhenmao Chen ◽  
Xiaojing Zheng
Keyword(s):  
Coupling Model ◽  
Ferromagnetic Materials ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Testing Method ◽  
Metal Magnetic Memory Testing

scholarly journals Application of Metal Magnetic Memory Testing Technology to the Detection of Stress Corrosion Defect

2020 ◽  
Vol 10 (20) ◽  
pp. 7083
Author(s):  
Bingxun Zhao ◽  
Kai Yao ◽  
Libo Wu ◽  
Xinglong Li ◽  
Yue-Sheng Wang
Keyword(s):  
Stress Corrosion ◽  
Normal Component ◽  
Ferromagnetic Materials ◽  
Error Rates ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Corrosion Defect ◽  
Detection Of Stress ◽  
Metal Magnetic Memory Testing

The damage of equipment manufactured with ferromagnetic materials in service can be effectively detected by Metal Magnetic Memory Testing (MMMT) technology, which has received extensive attention in various industry fields. The effect of stress or strain on Magnetic Flux Leakage (MFL) signals of ferromagnetic materials has been researched by many scholars for assessing stress concentration and fatigue damage. However, there is still a lack of research on the detection of stress corrosion damage of ferromagnetic materials by MMMT technology. In this paper, the electrochemical corrosion system was designed for corrosion experiments, and three different experiments were performed to study the effect of corrosion on MFL signals. The distribution of MFL signals on the surface of the specimen was investigated. The results indicated that both the normal component Hn and tangential component Ht of MFL signals presented different signal characteristics when the specimen was subjected to different working conditions. Finally, two characterization parameters, Sn and St, were defined to evaluate the corrosion degree of the specimen, and St is better. The direct dependence of corrosion depth on the parameter was developed and the average error rates between the predicted and measured values are 8.94% under the same working condition. Therefore, the expression can be used to evaluate the corrosion degree of the specimen quantitatively. The results are significant for detecting and assessing the corrosion defect of ferromagnetic materials.

Application Study of Metal Magnetic Memory Testing in the Q345E Steel Weld Inspection

2013 ◽  
Vol 273 ◽  
pp. 609-613
Author(s):  
Peng Lin Zhang ◽  
Wen Ke Wang ◽  
Yan Ping Wang ◽  
Li Cao
Keyword(s):  
Stress Concentration ◽  
Close Relation ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Application Study ◽  
Testing Method ◽  
Weld Inspection ◽  
Nondestructive Testing Method ◽  
Metal Magnetic Memory Testing

Metal magnetic memory testing is a new nondestructive testing method and used to diagnose ferromagnetic components stress concentration. Welding defects and stress concentration has the close relation. This paper used metal magnetic memory in the weld inspection to study an effective weld magnetic memory testing method, at the same time to verify the results by X-ray inspection.

Metal magnetic memory testing for early damage assessment in ferromagnetic materials

2005 ◽  
Vol 12 (2) ◽  
pp. 102-106 ◽  
Author(s):  
Li-hong Dong ◽  
Bin-shi Xu ◽  
Shi-yun Dong ◽  
Qun-zhi Chen ◽  
Yu-ya Wang ◽  
...  
Keyword(s):  
Damage Assessment ◽  
Ferromagnetic Materials ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Metal Magnetic Memory Testing ◽  
Early Damage

Investigation of Array Magnetic Memory Testing Technology on Extension of Metal Crack

2011 ◽  
Vol 148-149 ◽  
pp. 1483-1486
Author(s):  
Wei Min Zhang ◽  
Cheng Feng Chen ◽  
Hao Yan Li ◽  
Shu Xuan Liu
Keyword(s):  
Crack Extension ◽  
Complex Shape ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Testing Technique ◽  
Testing Method ◽  
Testing Technology ◽  
Core Components ◽  
Metal Magnetic Memory Testing

Metal Magnetic Memory (MMM) testing method has its own effective and unique advantages on the research of extension of metal crack. The array magnetic memory testing sensor designed and assembled in accordance with specific conditions, could evidently enhance testing-efficiency, such as for components with complex shape or large surface area, and may simplify the test equipment correspondingly. A kind of array magnetic memory sensor with Hall elements as core components was designed and an experiment on metal magnetic memory testing on extension of metal crack was executed. The experiment results indicate that the magnetic memory testing technique could effectively monitor and qualitatively evaluate the progress of metal crack extension.

scholarly journals Stress measurement using magnetic Barkhausen noise and metal magnetic memory testing

2010 ◽  
Vol 21 (5) ◽  
pp. 055703 ◽  
Author(s):  
Ping Wang ◽  
Shougao Zhu ◽  
Gui Yun Tian ◽  
Haitao Wang ◽  
John Wilson ◽  
...  
Keyword(s):  
Stress Measurement ◽  
Barkhausen Noise ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Magnetic Barkhausen Noise ◽  
Metal Magnetic Memory Testing

Magnetic crawler climbing detection robot basing on metal magnetic memory testing technology

2020 ◽  
Vol 125 ◽  
pp. 103439 ◽  
Author(s):  
Fumin Gao ◽  
JianChun Fan ◽  
Laibin Zhang ◽  
Jiankang Jiang ◽  
Shoujie He
Keyword(s):  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
Testing Technology ◽  
Metal Magnetic Memory Testing

scholarly journals Characteristics of Metal Magnetic Memory Testing of 35CrMo Steel during Fatigue Loading

Metals ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 119 ◽  
Author(s):  
Zhibin Hu ◽  
Jianchun Fan ◽  
Shengnan Wu ◽  
Haoyuan Dai ◽  
Shujie Liu
Keyword(s):  
Fatigue Loading ◽  
Magnetic Memory ◽  
Memory Testing ◽  
Metal Magnetic Memory ◽  
35Crmo Steel ◽  
Metal Magnetic Memory Testing
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