Investigation of the Magnetic Signals for the Ferromagnetic Components after Tensile Fatigue under Weak Magnetic Excitation

Yong Qiu; Wei Min Zhang; Wei Qin Zeng; Zhong Chao Qiu

doi:10.4028/www.scientific.net/AMM.300-301.938

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 300-301Investigation of the Magnetic Signals for the...

Investigation of the Magnetic Signals for the Ferromagnetic Components after Tensile Fatigue under Weak Magnetic Excitation

Abstract:

In order to investigate the magnetic signals on the surface of the ferromagnetic component, which have suffered the tensile fatigue under weak static magnetic excitation, an experiment is set up to operate the research. The 16MnR is adopted to make the specimen which will get the tensile fatigue, with a prefabricated small crack in the center position of it. The probe based on the GMR Array is engaged in the signal acquisition system. Magnetic signals at different tensile stage is obtained and mapped, as well as its gradient. Research between the characteristics of the signals and the specimen’s suspicious stress concentration or damaged area has been discussed to make a proper evaluation to the components.

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Periodical:

Applied Mechanics and Materials (Volumes 300-301)

Pages:

938-941

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.300-301.938

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Online since:

February 2013

Authors:

Yong Qiu, Wei Min Zhang, Wei Qin Zeng, Zhong Chao Qiu

Keywords:

GMR Array, Magnetic Signal, Tensile Fatigue, Weak Magnetic Excitation

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