Temperature Dependent Phenomena in Liquid LBE Alloy

Abstract:

The liquid lead-bismuth eutectic (LBE) alloy is of great interest for applications in future nuclear reactors. The structure and clustering of alloying elements have been investigated on an extended range of temperature (125-720 °C) by high temperature X-ray diffraction (HT-XRD), XPS and scanning photoemission microscopy (SPEM) at the ELETTRA synchrotron in Trieste. After melting the short-range order in liquid metal corresponds to a cuboctahedral arrangement of atoms that progressively evolves towards an icosahedral one as temperature increases. Such process, which is completed around 720 °C, is accompanied by a micro-chemical re-arrangement of atoms with changes of cluster size and composition. At high temperature the atom distribution results to be more homogeneous and the average size of clusters noticeably smaller.

• Periodical: Materials Science Forum (Volume 884)
• Pages: 41-52
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.884.41
• Online since: January 2017
• Authors: Matteo Amati, Santosh Kiran Balijepalli, Alessio Mezzi, Saulius Kaciulis, Roberto Montanari*, Alessandra Varone
• Keywords: High Temperature X-Ray Diffraction, Liquid Pb-Bi Eutectic Alloy, Micro-Chemical Inhomogeneity, Short Range Order, SPEM, XPS

References

[1] L. Cinotti, B. Giraud and H.A. Abderrahim, The experimental accelerator driver system (XADS) designs in the EURATOM 5th framework programme, J. Nucl. Mater. 335 (2004) 148-155.

DOI: 10.1016/j.jnucmat.2004.07.006

[2] I.S. Hwang, S.H. Jeong, B.G. Park, W.S. Yang, K.Y. Suh and C.H. Kim, The concept of proliferation-resistant, environment-friendly, accident-tolerant, continual and economical reactor (peacer), Prog. Nucl. Energy 37 (2000) 217-222.

DOI: 10.1016/s0149-1970(00)00049-4

[3] Y. Kurata, M. Futakawa, K. Kikuchi, S. Saito, T. Osugi, Corrosion studies in liquid Pb-Bi alloy at JAERI: R & D program and first experimental results, J. Nucl. Mater. 301 (2002) 28-34.

DOI: 10.1016/s0022-3115(01)00720-6

[4] D. Sapundiev, S. Van Dyck, W. Bogaerts, Liquid metal corrosion of T19 and A316L materials in Pb-Bi eutectic at temperatures 400-600 °C, Corrosion Science 48 (2006) 577-594.

DOI: 10.1016/j.corsci.2005.04.001

[5] G. Mueller, G. Schumacher, F. Zimmermann, Investigation on oxygen controlled liquid lead corrosion of surface treated steels, J. Nucl. Mater. 278 (2000) 85-95.

DOI: 10.1016/s0022-3115(99)00211-1

[6] R. Montanari, A. Varone, Mechanical Spectroscopy Investigation of Liquid Pb-Bi Alloys, Solid State Phenomena 184 (2012) 434-439.

DOI: 10.4028/www.scientific.net/ssp.184.434

[7] F. Q. Zu, Z.G. Zhu, B. Zhang, Y. Feng, J.P. Shui, Post-melting anomaly of Pb-Bi alloys observed by internal friction tecnique, J. Phys. Condens. Matter 13 (2001) 11435-11442.

DOI: 10.1088/0953-8984/13/50/303

[8] F.Q. Zu, Z.G. Zhu, L.J. Guo, X.B. Qin, H. Yang, W.J. Shan, Observation of an anomalous discontinuous liquid-structural change with temperature, Phys. Rev. Lett. Vol. 89-12 (2002) 12550.

DOI: 10.1103/physrevlett.89.125505

[9] F.Q. Zu, X.F. Li, L.J. Guo, H. Yang, X.B. Qin, Z.G. Zhu, Temperature dependence of liquid structures in In–Sn20: Diffraction experimental evidence, Physics Lett. A Vol. 324 (2004) 472-478.

DOI: 10.1016/j.physleta.2004.03.014

[10] F.Q. Zu, L.J. Guo, Z.G. Zhu, Y. Feng, Relative Energy Dissipation: Sensitive to Structural Changes of Liquids, Chin. Phys. Lett. Vol. 19 (2002) 94-97.

[11] Yu. Plevachuk, V. Sklyarchuk, S. Eckert and G. Gerbeth, Some physical data of the near eutectic liquid lead-bismuth, J. Nucl. Mater. 373 (2008) 335-342.

DOI: 10.1016/j.jnucmat.2007.06.014

[12] Q. Li, F.Q. Zu, X.F. Li, Y. Xi: The electrical resistivity of liquid Pb-Bi alloy, Mod. Phys. Lett. B 20/4 (2006) 151-158.

DOI: 10.1142/s0217984906009037

[13] S. Kaciulis, A. Mezzi, R. Donnini, P. Deodati, R. Montanari, N. Ucciardello, M. Amati, M. Kazemian-Abyaneh, C. Testani, Microchemical characterisation of carbon-metal interface in Ti6Al4V-SiCf composites, Surf. Interf. Anal. 42 (2010) 707-711.

DOI: 10.1002/sia.3219

[14] S. Kaciulis, A. Mezzi, M. Amati, R. Montanari, G. Angella, M. Maldini, Relation between the microstructure and microchemistry in Ni-based superalloy, Surf. Interf. Anal. 44 (2012) 982-985.

DOI: 10.1002/sia.4844

[15] A. Mezzi, S. Kaciulis, S.K. Balijepalli, R. Montanari, A. Varone, M. Amati, B. Aleman Llorente, Micro-chemical inhomogeneity in eutectic Pb-Bi alloy quenched from melt, Surf. and Interf. Anal. 46 (2014) 877–881.

DOI: 10.1002/sia.5368

[16] R. Montanari, Real-time XRD investigations on metallic melts, Int. J. Mater. Prod. Tec. 20 (2004) 452-463.

[17] M.K. Abyaneh, L. Gregoratti, M. Amati, M. Dalmiglio, M. Kiskinova, Scanning Photoelectron Microscopy: a Powerful Technique for Probing Micro and Nano-Structures, e-Journal of Surface Science and Nanotechnology, 9 (2011).

DOI: 10.1380/ejssnt.2011.158

[18] H. Reichert, O. Klein, H. Dosch, M. Denk, V. Honkimaki, T. Lippmann, G. Reiter, Observation of five-fold local symmetry in liquid lead, Nature 408 (2000) 839-841.

DOI: 10.1038/35048537

[19] F.C. Frank, Supercooling of liquids, Proc. Roy. Soc. Lond. A 215 (1952) 43-46.

[20] J.D. Bernal, Geometry of the structure of monoatomic liquids, Nature 185 (1960) 68- 70.