Phonon dispersion and elastic constants in Fe-Cr-Mn-Ni austenitic steel

被引：8
|
作者：
Danilkin, SA [1 ]
Fuess, H
Wieder, T
Hoser, A
机构：
[1] Inst Phys & Power Engn, Obninsk 249020, Russia
[2] Tech Univ Darmstadt, D-64287 Darmstadt, Germany
[3] Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany
来源：
JOURNAL OF MATERIALS SCIENCE | 2001年 / 36卷 / 04期
关键词：
Atomic force constants - Dispersion curves;
D O I：
10.1023/A:1004801823614
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The lattice dynamics of Fe-18Cr-10Mn-16Ni austenitic steel was studied by inelastic neutron scattering techniques. Phonon dispersion curves were measured in the [100], [011] and [111] directions at low wavevectors. The measured dispersion curves are similar to those of the gamma -Fe and the Fe0.75Ni0.25 alloy, but do not show the anomalous concave curvature of the T-1 [001] branch at lower wave vectors as characteristic for gamma -Fe. All available data were used for the evaluation of the atomic force constants, elastic constants and engineering elastic moduli of Fe-18Cr-10Mn-16Ni steel. (C) 2001 Kluwer Academic Publishers.
引用
收藏
页码：811 / 814
页数：4
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