19 May 2005 Magnetization changes induced by low cycle fatigue both in the geomagnetic field and the magnetic-free environment
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Abstract
It's widely accepted that stress concentration and deformation caused by processing will induce local magnetic field abnormality. However, what role the geomagnetic environment act in this phenomenon is a problem causing people's concern all the time. In this paper, annealed samples were designed to remove the non uniform distribution of magnetic field resulted by processing; local stress concentration and deformation were implemented on samples by bending manually in magnetic-free space; comparison of magnetic aberration were made between the geomagnetic field and magnetic-free space after deformation. It was found that geomagnetic environment plays the leading effect on above magnetic abnormality phenomenon, and the magnitude of aberration was found to vary with materials, especially the carbon content.
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En Yang, En Yang, Luming Li, Luming Li, } "Magnetization changes induced by low cycle fatigue both in the geomagnetic field and the magnetic-free environment", Proc. SPIE 5767, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure IV, (19 May 2005); doi: 10.1117/12.599081; https://doi.org/10.1117/12.599081
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