Features of Formation of Crystallographic Texture in Cells of Spacing Grid at their Stamping

Abstract

The structural and textural heterogeneity of thin-walled tubes of Zr-1% Nb alloy used for stamping of the cells of the spacing grid (SG) was studied. It was found, that structure and texture of thin-walled tubes corresponds to incomplete recrystallization. During the increasing of recrystallization degree, the variation of crystal structure parameters of Nb solid solution in

References
[1] Blokhina A.N., Stolotnyuk S.V., Stolotnyuk Ya.D. Comparative analysis of the stressstrain state of the constructions of the fuel assemblies of the VVER-1000 reactor under dynamic loads. News of higher educational institutions, 2012, №5, С.6-16.


[2] Gusev M.P., Danilov V.L. Analysis of the relaxation of the contact force in the fuel element and the spacer grid connection of the VVER fuel assembly. News of higher educational institutions, 2016, №1 (670) pp. 12-17


[3] Isaenkova M.G., Perlovich Yu.A., Regularities in the development of crystallographic texture and substructure heterogeneity in zirconium alloys during deformation and heat treatment. - M.: NRNU MEPhI, 2014. - 528 p.


[4] Dobromyslov A.V., Taluts N.I.. Structure of Zr and its alloys – Ekaterinburg, 1997. – 228 p.


[5] Isaenkova M.G., Perlovich Yu.A., Fesenko V.A. Modern Methods to Construct Experimentally Texture Complete Direct Pole figures by X-ray Data. Industrial Laboratory. Materials Diagnostics, 2013, 79(7), part 1, 25-32.


[6] Isaenkova, M., Perlovich, Y., Fesenko, V. Modern methods of experimental construction of texture complete direct pole figures by using X-ray data IOP Conf. Series: Materials Science and Engineering 130 (2016) 012055 doi:10.1088/1757- 899X/130/1/012055.


[7] LaboTex v. 3.0 by LaboSoft (Krakow, Poland) on http://www.labosoft.com.pl


[8] Isaenkova M., Perlovich Yu., Skrytnyy V.I., Yaltsev V.N. X-ray determination of macrostresses. – M.: MEPhI, 2007. – 48 c.


[9] Rusakov A.A. X-ray diffraction in metals. – M.: Atomizdat, 1977. – 480 p.


[10] Dewobroto N., Bozzolo N., Batberis P., Wagner F. On the mechanisms governing the texture and microstructure evolution during static recrystallization and grain growth of low alloyed zirconium sheets. – Int. J. Mat. Res., 2007, 97, р. 826-833.


[11] Isaenkova M., Perlovich Yu., Fesenko V. Regularities of crystallographic texture formation in cladding tubes from Zr-based alloys during their production – IOP Conf. Series: Materials Science and Engineering 130 (2016) 012008 doi:10.1088/1757- 899X/130/1/012008


[12] Isaenkova M. G., Perlovich Yu.A., Fesenko V.A., Krymskaya O.A., Soe San Thu. Regularities of recrystallization of rolled Zr single crystals. – IOP Conf. Series: Materials Science and Engineering 82 (2015) 012038 doi:10.1088/1757-899X/82/1/012038


[13] Isaenkova M., Perlovich Y., Fesenko V., Krymskaya O. Changes of basal normal orientation during recrystallization of sheets and tubes from Zr-based alloys - Proceedings of the 6th International Conference on Recrystallization and Grain Growth, ReX and GG 2016


[14] Isaenkova M., Perlovich Yu., Medvedev P., Krymskaya O. Effect of interlayer macrostress on hydride orientation of shell tubes from Zr-based alloys. – IOP Conf. Series: Materials Science and Engineering 82 (2015) 012106 doi:10.1088/1757- 899X/82/1/012106


[15] Tenckhoff E. Deformation mechanisms, texture and anisotropy in Zirconium and Zircaloy. Philadelphia: ASTM, Special technical publication (STP 966), 1988. 77 p.