Annealing Effects on the Microstructure and Mechanical Properties of Cu-Nb Microcomposites

Abstract:

The annealing effects on the microstructure of Cu-Nb microcomposites fabricated by bundling and drawing process have been studied. During annealing at temperature as high as 800, the intensity of (110) diffraction peak of Nb became sharper and higher. The significant cylinderization and coarsening phenomenons of the niobium filaments were observed. The influence of microstructural changes on the hardness and the tensile strengths of Cu-Nb wires were discussed.

• Periodical: Materials Science Forum (Volumes 745-746)
• Pages: 163-167
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.745-746.163
• Online since: February 2013
• Authors: Xiao Yan Xu, Ya Feng Lu, Ming Liang, Peng Fei Wang, Xiao Bo Ma, Cheng Shan Li
• Keywords: Annealing, Cu-Nb Composites, Mechanical Property, Microstructure

References

[1] G. Iwaki, J. Sato, K. Katagiri and K. Watanabe, Strain effects of high strength Nb3Sn wire reinforced by jelly-rolled Nb/Cu composite and modification of the reinforcement, IEEE Trans. Appl. Supercond. 11 (2001) 3631-3634.

DOI: 10.1109/77.919851

[2] E.N. Popova, V.V. Popov, E.P. Romanov, N.E. Hlebova, A.K. Shikov, Effect of deformation and annealing on texture parameters of composite Cu-Nb wire, Scripta Materialia. 51 (2004) 727-731.

DOI: 10.1016/j.scriptamat.2004.05.037

[3] M.J.R. Sandim, H.R.Z. Sandim, H.H. Bernardi, C.Y. Shigue, M.G.D. Virgens, L. Ghivelder, S.A. waji, K. Watanabe and G. Iwaki, Annealing effects on the microstructure, electrical, and magnetic properties of jelly-rolled Cu-Nb composite wires, Supercond. Sci. Technol. 18 (2005).

DOI: 10.1088/0953-2048/18/1/006

[4] Y.L. Wang, K. Han, Y. Huang, K.Y. Zhang, Microstructure in Cu-Nb microcomposites, Materials Science and Engineering A. 351 (2003) 214-223.

DOI: 10.1016/s0921-5093(02)00855-9

[5] M. Liang, Y. Ff. Lu, Z.L. Chen, C.S. Li, G. Yan, C.G. Li, P.X. Zhang, Characteristics of High Strength and High Conductivity Cu-Nb Micro-Composites. IEEE Trans. Appl. Supercond. 20 (2010) 1619-1621.

DOI: 10.1109/tasc.2009.2039703

[6] H.R.Z. Sandim, M.J.R. Sandim, H.H. Bernardi, J.F.C. Lins, D. Raabe, Annealing effects on the microstructure and texture of a multifilamentary Cu-Nb composite wire, Scripta Materialia. 51 (2004) 1099-1104.

DOI: 10.1016/j.scriptamat.2004.07.026

[7] M.J.R. Sandim, C.Y. Shigue, L.G. Ribeiro, M. Filgueira, H.R.Z. Sandim, Annealing effects on the electrical and superconducting properties of a Cu-15vol%Nb composite conductor, IEEE Trans. Appl. Supercond. 12 (2002) 1195-1198.

DOI: 10.1109/tasc.2002.1018615

[8] S.I. Hong and M.A. Hill, Microstructure and conductivity of Cu-Nb microcomposites fabricated by the bundling and drawing process, Scr. Mater. 44 (2001) 2509-2515.

DOI: 10.1016/s1359-6462(01)00665-0

[9] M.J.R. Sandim, H.R.Z. Sandim, The evolution of Nb recrystallization in a Cu matrix: morphology of Nb and modulation of its critical fields in a wire configuration, Supercond. Sci. Technol. 18 (2005) 1151-1158.

DOI: 10.1088/0953-2048/18/9/001

[10] T. Akune, R. Maeda, N. Sakamoto, K. Funaki, AC susceptibilities in NbTi multifilamentary wires with Cu and CuMn matrices, IEEE Trans. Appl. Supercond. 11 (2001) 2764-2767.

DOI: 10.1109/77.919636

[11] S.I. Hong, Effect of Nb content on the strength of Cu-Nb filamentary microcomposites, J. Mater. Res. 15 (2000) 1889-1893.

DOI: 10.1557/jmr.2000.0274

[12] S.I. Hong, M.A. Hill, Mechanical and electrical properties of heavily drawn Cu-Nb microcomposites with various Nb contents, Journal of Materials Science. 37 (2002) 1237-1245.

[13] F Dupouy, E. Snoeck, M.J. Casanove, C. Roucau, J.P. Peverade, Microstructural characterization of high strength and high conductivity nanocomposite wires, Scripta Mater. 34 (1996) 1067-1073.

DOI: 10.1016/1359-6462(95)00632-x