Magnetoelastic Acoustic Emission : Theory and Applications in Ferromagnetic Materials (Springer-aas Acoustics Series)

Skalskyi, Valentyn/ Nazarchuk, Zinoviy

Springer Verlag, Singapore（2024/04発売）

• 製本 Hardcover:ハードカバー版／ページ数 390 p.
• 言語 ENG
• 商品コード 9789819940318

Full Description

The book presents theoretical and experimental studies to establish the relationship between volume jumps of the 90o domain wall in a ferromagnetic material and the magnitude of the half-space surface displacement caused by it. A method of evaluating the influence of the external magnetic field on the stress intensity factor at the tip of the crack-like defects in ferromagnets is discussed. The influence of hydrogen on the generation of magneto-elastic acoustic emission signals of ferromagnets is described. The features of magneto-elastic acoustic emission due to the presence of plastic deformation, structural changes, and volumetric damage in such structural materials are shown.

Contents

Some Concepts on Remagnetization of Ferromagnets.- Barkhausen Effect and Emission of Elastic Waves Under Remagnetization of Ferromagnet.- Models of MAE and Interaction of Magnetic Field with Cracks.- Models of Hydrogen Cracks Initiation as Sources of Elastic Waves Emission.- Estimation of Hydrogen Effect on Metals Fracture.- Determination of Magnetic Ductility and Residual Magnetization of Steels.- Methodology of Investigation the Hydrogen Influence on Ferromagnet.- Mathematical Models of MAE Signal and its Informative Parameters.- Evaluation of Electrolytically Absorbed Hydrogen by MAE Parameters.