title: Effect of Annealing in Magnetic Field on Ferromagnetic Nanoparticle Formation in Cu-Al-Mn Alloy with Induced Martensite Transformation.
abstract: The paper considers the influence of aging of high-temperature phase on subsequent martensitic transformation in Cu-Al-Mn alloy. The morphology of behavior of martensitic transformation as a result of alloy aging under annealing in a constant magnetic field with different sample orientation relatively to the field direction and without field was studied for direct control of the processes of martensite induction at cooling. Temperature dependences of electrical resistance, magnetic susceptibility, and magnetization, as well as field dependences of magnetization, and phase composition were found. The tendency to the oriented growth of precipitated ferromagnetic phase nanoparticles in a direction of applied field and to an increase of their volume fraction under thermal magnetic treatment of material that favors a reversibility of induced martensitic transformation is observed.
authors.affiliation: Institute of Magnetism of National Academy of Sciences and Ministry of Education and Science of Ukraine, 36-b Vernadsky Boulevard, Kyiv, 03142, Ukraine.
authors.forename: Anatoliy
authors.initials: A
authors.lastname: Titenko
authors.affiliation: Department of Physics of Metals, National Technical University of Ukraine "Kyiv Polytechnic Institute", 37 Peremohy Avenue, Kyiv, 03056, Ukraine. lesyademch@gmail.com.
authors.forename: Lesya
authors.initials: L
authors.lastname: Demchenko
keywords: Aging; Annealing; Cu-Al-Mn alloy; Ferromagnetic nanoparticles; Magnetic field; Martensite transformation