Atomic structure of the Fe/Fe3C interface with the Isaichev orientation in pearlite

被引：29
作者：
Zhou, Y. T. [1 ]
Zheng, S. J. [1 ]
Jiang, Y. X. [1 ]
Zhao, T. Z. [2 ]
Wang, Y. J. [1 ]
Ma, X. L. [1 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China
[2] Shenyang Aerosp Univ, Key Lab Fundamental Sci Natl Def Aeronaut Digital, Shenyang, Liaoning, Peoples R China
[3] Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou, Gansu, Peoples R China
来源：
PHILOSOPHICAL MAGAZINE | 2017年 / 97卷 / 27期
关键词：
Interfaces; transmission electron microscopy; multilayers; cementite; pearlitic steel; BRILLOUIN-ZONE INTEGRATIONS; STRENGTHENING MECHANISMS; MICROSTRUCTURE; STEEL; DEFORMATION; MULTILAYERS; FERRITE; WIRE;
D O I：
10.1080/14786435.2017.1332434
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The pronounced mechanical property of pearlitic steels highly correlates with the ferrite (bcc-Fe)/cementite (Fe3C) boundaries inside. Unraveling the interface structure at an atomic level is essential for interpreting the material's property. In the present study, using aberration-corrected scanning/transmission electron microscopy combined with density functional theory calculations, we reveal the atomic configuration as well as the electronic structure of the Fe/Fe3C interfaces with the Isaichev orientation in pearlite. The interface with terminating layer Fe-C-Fe in cementite has the lowest energy due to the formation of interfacial Fe-C bonds. Terrace steps which are frequently observed at the interfaces would not break the lattice match between the two phases.
引用
收藏
页码：2375 / 2386
页数：12
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