Formation of FeNi with L10-ordered structure using high-pressure torsion

Seungwon Lee; Kaveh Edalati; Hideaki Iwaoka; Zenji Horita; Takumi Ohtsuki; Takuo Ohkochi; Masato Kotsugi; Takayuki Kojima; Masaki Mizuguchi; Koki Takanashi

doi:10.1080/09500839.2014.955546

Formation of FeNi with L1₀-ordered structure using high-pressure torsion

Seungwon Lee^*, Kaveh Edalati, Hideaki Iwaoka, Zenji Horita, Takumi Ohtsuki, Takuo Ohkochi, Masato Kotsugi, Takayuki Kojima, Masaki Mizuguchi, Koki Takanashi

^*Corresponding author for this work

Materials Design and Engineering

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

FeNi with the L1₀-ordered structure is formed over an astronomical timescale in meteorites. In this study, severe plastic deformation using high-pressure torsion (HPT) is employed for the production of the L1₀ structure in the laboratory. Its formation is confirmed by X-ray diffraction analysis and transmission electron microscopy. Processing of elemental nanopowders by HPT is an effective method for the formation of the L1₀ phase, which is enhanced by the addition of Co to FeNi or annealing after HPT. The formation of the phase must be associated with enhanced diffusion through HPT.

Original language	English
Pages (from-to)	639-646
Number of pages	8
Journal	Philosophical Magazine Letters
Volume	94
Issue number	10
DOIs	https://doi.org/10.1080/09500839.2014.955546
State	Published - 2014/10

Keywords

enhanced diffusion
phase transformation
severe plastic deformation (SPD)
transmission electron microscopy
ultrafine grains (UFG)

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1080/09500839.2014.955546

Cite this

@article{69999b407ab7472e9ab4bef1e98e06f0,

title = "Formation of FeNi with L10-ordered structure using high-pressure torsion",

abstract = "FeNi with the L10-ordered structure is formed over an astronomical timescale in meteorites. In this study, severe plastic deformation using high-pressure torsion (HPT) is employed for the production of the L10 structure in the laboratory. Its formation is confirmed by X-ray diffraction analysis and transmission electron microscopy. Processing of elemental nanopowders by HPT is an effective method for the formation of the L10 phase, which is enhanced by the addition of Co to FeNi or annealing after HPT. The formation of the phase must be associated with enhanced diffusion through HPT.",

keywords = "enhanced diffusion, phase transformation, severe plastic deformation (SPD), transmission electron microscopy, ultrafine grains (UFG)",

author = "Seungwon Lee and Kaveh Edalati and Hideaki Iwaoka and Zenji Horita and Takumi Ohtsuki and Takuo Ohkochi and Masato Kotsugi and Takayuki Kojima and Masaki Mizuguchi and Koki Takanashi",

note = "Publisher Copyright: {\textcopyright} 2014 {\textcopyright} 2014 Taylor & Francis.",

year = "2014",

month = oct,

doi = "10.1080/09500839.2014.955546",

language = "英語",

volume = "94",

pages = "639--646",

journal = "Philosophical Magazine Letters",

issn = "0950-0839",

publisher = "Taylor and Francis Ltd.",

number = "10",

}

TY - JOUR

T1 - Formation of FeNi with L10-ordered structure using high-pressure torsion

AU - Lee, Seungwon

AU - Edalati, Kaveh

AU - Iwaoka, Hideaki

AU - Horita, Zenji

AU - Ohtsuki, Takumi

AU - Ohkochi, Takuo

AU - Kotsugi, Masato

AU - Kojima, Takayuki

AU - Mizuguchi, Masaki

AU - Takanashi, Koki

PY - 2014/10

Y1 - 2014/10

N2 - FeNi with the L10-ordered structure is formed over an astronomical timescale in meteorites. In this study, severe plastic deformation using high-pressure torsion (HPT) is employed for the production of the L10 structure in the laboratory. Its formation is confirmed by X-ray diffraction analysis and transmission electron microscopy. Processing of elemental nanopowders by HPT is an effective method for the formation of the L10 phase, which is enhanced by the addition of Co to FeNi or annealing after HPT. The formation of the phase must be associated with enhanced diffusion through HPT.

AB - FeNi with the L10-ordered structure is formed over an astronomical timescale in meteorites. In this study, severe plastic deformation using high-pressure torsion (HPT) is employed for the production of the L10 structure in the laboratory. Its formation is confirmed by X-ray diffraction analysis and transmission electron microscopy. Processing of elemental nanopowders by HPT is an effective method for the formation of the L10 phase, which is enhanced by the addition of Co to FeNi or annealing after HPT. The formation of the phase must be associated with enhanced diffusion through HPT.

KW - enhanced diffusion

KW - phase transformation

KW - severe plastic deformation (SPD)

KW - transmission electron microscopy

KW - ultrafine grains (UFG)

UR - http://www.scopus.com/inward/record.url?scp=84907938915&partnerID=8YFLogxK

U2 - 10.1080/09500839.2014.955546

DO - 10.1080/09500839.2014.955546

M3 - 学術論文

AN - SCOPUS:84907938915

SN - 0950-0839

VL - 94

SP - 639

EP - 646

JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

IS - 10

ER -