In situ neutron diffraction study of α-γ Fe-Cr-Ni alloys under tensile deformation

被引：102

作者：

Harjo, S

Tomota, Y

Lukás, P

Neov, D

Vrána, M

Mikula, P

Ono, M

机构：

[1] Ibaraki Univ, Fac Engn, Dept Mat Sci, Hitachi, Ibaraki 3168511, Japan

[2] Inst Nucl Phys, Prague 25068, Czech Republic

[3] Kyoto Univ, Inst Res Reactor, Kumatori, Osaka 5900494, Japan

来源：

ACTA MATERIALIA | 2001年 / 49卷 / 13期

关键词：

in situ neutron diffraction; Fe-Cr-Ni alloys;

D O I：

10.1016/S1359-6454(01)00147-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Neutron diffraction experiments were performed in situ upon tensile loading for five Fe-Cr-Ni alloys with different ferrite volume fractions ranging from 0 to 100%. The diffraction profiles were recorded along with the tensile deformation curves during temporary stops in a deformation machine (5 ks each) with the crosshead fixed. One reflection of each phase, (111) of austenite (gamma) and (110) of ferrite (alpha), respectively, were measured simultaneously by using a position sensitive detector. Evolution of elastic lattice strains and dislocation densities in both constituent phases was evaluated from measured diffraction profiles as a function of external loading. Based on these experimental results, heterogeneous deformation behavior in the alpha-gamma dual-phase alloys is discussed. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：2471 / 2479

页数：9

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