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Magnetic memory detection in welding joint of 20 steel plate
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Yunchen XIE1, Risu NA1, Xiao WANG2
Thermal Power Generation | 2024, 53(11) : 155 - 161
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Thermal Power Generation | 2024, 53(11): 155-161
• Power generation technology forum •
Magnetic memory detection in welding joint of 20 steel plate
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Yunchen XIE1, Risu NA1, Xiao WANG2
Affiliations
  • 1.CHN Energy Boiler and Pressure Vessel Inspection Co., Ltd., Beijing 100070, China
  • 2.School of Mechanical Engineering, Nantong University, Nantong 226004, China
Published: 2024-11-25 doi: 10.19666/j.rlfd.202404085
Outline
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Compared with magnetic particle detection and ray detection, magnetic memory detection is more sensitive. The magnetic memory technology is employed to carry out nondestructive testing and evaluation for weld defects of 20 steel plate. The results show that, the magnetic memory detection method can effectively characterize the weld defects of steel plates. Compared with the magnetic field intensity parameter, the magnetic field gradient value is more sensitive to the weld defects of the four tested steel plates, which manifested as its normal component increases significantly and presents a convex peak, and the abnormal magnetic memory signals also appear in some places of the weld with local stress concentration. In practical application, the rapid characteristics of the magnetic memory detection technology can be used to extract the abnormal signals of the weld seam of the tested components at first, and then compare it with other non-destructive testing methods, to effectively improve the accuracy and reliability of defect detection.

metal magnetic memory detection  /  weld defects  /  crack  /  nondestructive testing
Yunchen XIE, Risu NA, Xiao WANG. Magnetic memory detection in welding joint of 20 steel plate[J]. Thermal Power Generation, 2024 , 53 (11) : 155 -161 . DOI: 10.19666/j.rlfd.202404085
Funding
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  • Project of National Energy Group Science and Technology Research Institute(GJ2022Y01)
  • Youth Fund of National Natural Science Foundation(52305156)
Appendix
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Year 2024 volume 53 Issue 11
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77
31
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Article Info
doi: 10.19666/j.rlfd.202404085
  • Receive Date：2024-04-25
  • Online Date：2026-03-05
  • Published：2024-11-25
Article Data
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History
  • Received：2024-04-25
Funding
Project of National Energy Group Science and Technology Research Institute(GJ2022Y01)
Youth Fund of National Natural Science Foundation(52305156)
Affiliations
    1.CHN Energy Boiler and Pressure Vessel Inspection Co., Ltd., Beijing 100070, China
    2.School of Mechanical Engineering, Nantong University, Nantong 226004, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202404085
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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