Strain and stress tensors of rolled uranium plate by Rietveld refinement of TOF neutron-diffraction data

被引：6

作者：

Balzar, D. ^{[1
]}

Popa, N. C. ^{[2
]}

Vogel, S. ^{[3
]}

机构：

[1] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA

[2] Natl Inst Mat Phys, Bucharest, Romania

[3] Los Alamos Natl Lab, Los Alamos Neutron Scattering Ctr, Los Alamos, NM USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 528卷 / 01期

关键词：

Neutron diffraction; Rietveld refinement; Strain; Stress; Uranium; ELASTIC-STRAIN; TEXTURE;

D O I：

10.1016/j.msea.2010.06.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the complete macroscopic average strain and stress tensors for a cold-rolled uranium plate, based on the neutron TOF measurements. Both tensors were determined by the least-squares refinement of the interplanar spacings of 19 Bragg reflections. Based on the pole figures, as determined by GSAS, a triclinic sample symmetry of the uranium plate was assumed. Strain and stress are tensile in both the transverse and rolling directions and very small in the normal direction (through the thickness of the plate). Shear strain and stress components are compressive and of significant magnitude. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：122 / 126

页数：5

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