Equal channel angular extrusion for bulk processing of Fe–Co–2V soft magnetic alloys, part II: Texture analysis and magnetic properties

Kustas, Andrew B.; Michael, Joseph R.; Susan, Don F.; Karaman, Ibrahim; Jozaghi, Taymaz

doi:10.1557/jmr.2018.150

Equal channel angular extrusion for bulk processing of Fe–Co–2V soft magnetic alloys, part II: Texture analysis and magnetic properties

Journal Article · Mon Jun 04 00:00:00 EDT 2018 · Journal of Materials Research

DOI:https://doi.org/10.1557/jmr.2018.150· OSTI ID:1444098

Kustas, Andrew B. ^[1]; Michael, Joseph R. ^[1]; Susan, Don F. ^[1]; Karaman, Ibrahim ^[2]; Jozaghi, Taymaz ^[2]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Texas A & M Univ., College Station, TX (United States)

In Part I, equal channel angular extrusion (ECAE) was demonstrated as a novel, simple-shear deformation process for producing bulk forms of the low ductility Fe–Co–2V (Hiperco 50A®) soft ferromagnetic alloy with refined grain sizes. Microstructures and mechanical properties were discussed. In this Part II contribution, the crystallographic textures and quasi-static magnetic properties of ECAE-processed Hiperco were characterized. The textures were of a simple-shear character defined by partial {110} and <111> fibers inclined relative to the extrusion direction, in agreement with the expectations for simple-shear deformation textures of BCC metals. These textures were observed throughout all processing conditions and only slightly reduced in intensity by subsequent recrystallization heat treatments. Characterization of the magnetic properties revealed a lower coercivity and higher permeability for ECAE-processed Hiperco specimens relative to the conventionally processed and annealed Hiperco bar. In conclusion, the effects of the resultant microstructure and texture on the coercivity and permeability magnetic properties are discussed.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1444098

Report Number(s):: SAND--2018-6004J; 664092

Journal Information:: Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 15 Vol. 33; ISSN 0884-2914

Publisher:: Materials Research SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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