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

被引：87
作者：
Lee, Seungwon [1 ,2 ]
Edalati, Kaveh [1 ,2 ]
Iwaoka, Hideaki [1 ,2 ]
Horita, Zenji [1 ,2 ]
Ohtsuki, Takumi [3 ]
Ohkochi, Takuo [3 ]
Kotsugi, Masato [3 ]
Kojima, Takayuki [4 ]
Mizuguchi, Masaki [4 ]
Takanashi, Koki [4 ]
机构：
[1] Kyushu Univ, WPI, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan
[2] Kyushu Univ, Dept Mat Sci & Engn, Fac Engn, Fukuoka 8190395, Japan
[3] JASRI, Sayo, Hyogo 6795198, Japan
[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2014年 / 94卷 / 10期
基金：
日本科学技术振兴机构;
关键词：
enhanced diffusion; transmission electron microscopy; phase transformation; ultrafine grains (UFG); severe plastic deformation (SPD); SEVERE PLASTIC-DEFORMATION; PHASE-TRANSFORMATIONS; ELECTRON-IRRADIATION; MAGNETIC-PROPERTIES; ALLOYS DRIVEN; NI; INTERMETALLICS; DIFFUSION; TETRATAENITE; BOMBARDMENT;
D O I：
10.1080/09500839.2014.955546
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
FeNi with the L1(0)-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 L1(0) 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 L1(0) 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.
引用
收藏
页码：639 / 646
页数：8
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