Evolution of Interphase Stress in Zr-2.5% Nb during Deformation

被引：6

作者：

Cai, S. ^{[1
]}

Daymond, Mark R. ^{[1
]}

Holt, R. A. ^{[1
]}

Oliver, E. C. ^{[2
]}

机构：

[1] Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada

[2] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England

来源：

THERMEC 2006 SUPPLEMENT: 5TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2007年 / 15-17卷

关键词：

interphase; stress; strain; residual; Neutron diffraction; Zr-2.5Nb; FEM;

D O I：

10.4028/www.scientific.net/AMR.15-17.615

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A series of neutron diffraction in-situ uniaxial compressive deformation tests have been carried out on textured Zr-2.5Nb. Test samples were prepared from the hot rolled plate with loading axes variuosly parallel to each of the plate rolling (RD), transverse (TD) and normal directions (ND). The evolution of the lattice parametes inboth phases were measured in all three principal directions for each case of loading axis. The average phase strains determined by Rietveld refinement showed and anisotropic yielding dependent on sample orientation relative to the parent plate. The alpha-phase yielded first at stresses around 330-420MPa and transfered load to the beta-phase. The beta-phase yielded at stresses about 400-500MPa causing reverse load transfer to the alpha-phase. A Finite Element Method (FEM) was used to simulate the stress strain behaviours of the phases. Despite the simplicity of this mode, a very good agreement was obtained between the experimental results and the FEM calculations

引用

页码：615 / 620

页数：6

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