Strong magnetization by antiphase-boundary tubes in a cyclically deformed Fe-35 at.% Al alloy

• Published in: Philosophical magazine (Abingdon, England) Vol. 83; no. 12; pp. 1431 - 1449
• Main Authors: Yamamoto, K., Miyazaki, S., Kumai, S., Sato, A.
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis Group 21.04.2003; Taylor and Francis
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Domain effects, magnetization curves, and hysteresis; Exact sciences and technology; Fatigue, brittleness, fracture, and cracks; Magnetic properties and materials; Magnetization curves, hysteresis, Barkhausen and related effects; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Metals. Metallurgy; Physics; Defect density; Annealing; Magnetization; Anti-phase boundaries; Cyclic loads; Spontaneous magnetization; Fatigue; Experimental study; Stress-strain relations; Dislocations; Magnetic susceptibility; Aluminium alloys; Strain hardening; Iron base alloys
• ISSN: 1478-6435; 1478-6443
• DOI: 10.1080/1478643031000078486

Strong magnetization was observed in a cyclically deformed Fe-35 at.% Al alloy by introduction of a high density of antiphase-boundary (APB) tubes. In order to introduce a large plastic deformation without changing the specimen dimension, compressive deformation was given repeatedly along mutually orthogonal stress axes under a constraint imposed across the stress axes. Clear evidence was obtained in attributing the major origin of the large magnetization to the production of a high density of APB tubes. The contribution of the APB tubes to the strong magnetization and to the work hardening is discussed on the basis of quantitative analyses of the microstructures introduced by cyclic deformation.