KnE Materials Science
ISSN: 2519-1438
The latest conference proceedings on physical materials, energy materials, electrical materials.
Application Of Ni-Mg-Ce Master Alloy Scrap For Inoculation Of Copper-Nickel Alloys
Published date: Sep 03 2017
Journal Title: KnE Materials Science
Issue title: Technogen-2017
Pages: 102-108
Authors:
Abstract:
The problems of production of copper-nicckel alloys ingots by semicontinuous casting method are analysed. The requirement of grain size refinement in cast alloys macrostructure is shown. It is necessary to reduce the probability of hot cracks formation and increase the fabricability of cast bars during plastic working. The reasonability of fine fraction of Ni-Mg-Ce master alloy application for inoculation of copper-nickel alloys is established. The results of laboratory experiments on the study of master alloy quantity influence the structure and hardness of Cu-5Ni-1Fe, Cu-10Ni-1Fe-1Mn and Cu-30Ni-1Fe-1Mn copper-nickel alloys are presented. On the basis of industrial experiments it is revealed that inoculation of Cu-5Ni-Fe alloy ingots of diameter 200 mm by Ni-Mg-Ce master alloy leads to considerable reducing of macrograin size. It allows to improve mechanical properties of ingots and ensure their uniform distribution in cross section of ingots. It is established that residual magnesium content in alloy must be in range from 0,02 to
0,06 wt. %. The use of Ni-Mg-Ce master alloy makes it possible to increase the processability of copper-nickel alloys during plastic working and utilize the fine fraction master alloy scrap inevitably formed during its production.
Keywords: Copper-nickel alloys, Semicontinuos casting, Ingot, Inoculation, Ni-Mg-Ce master alloy, Structure, Mechanical properties
References:
[1] N. S. Arsent’eva, E. A. Kazantsev, A. V. Sulitsin, L. M. Zheleznyak, L. N. Marushchak, and O. L. Glukhova, “Technology for making welding wire from different alloys at the Kamensk-Ural’skii Nonferrous Metals Processing Plant,” Metallurgist, vol. 52, no. 3-4, pp. 192–196, 2008.
[2] S. Zhang, K. Song, X. Guo, Y. Zhang, and X. Li, “Corrosion behavior of B10 copper-nickel alloy pipe in flowing artificial seawater,” Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys, vol. 36, no. 6, pp. 669–672, 2016.
[3] M. Metikoš-Huković, R. Babić, I. Škugor Rončević, and Z. Grubač, “Corrosion resistance of copper–nickel alloy under fluid jet impingement,” Desalination, vol. 276, no. 1-3, pp. 228–232, 2011.
[4] P. Sakiewicz, R. Nowosielski, and R. Babilas, “Production aspects of inhomogeneous hot deformation in as-cast CuNi25 alloy,” Indian Journal of Engineering and Materials Sciences, vol. 22, no. 4, pp. 389–398, 2015.
[5] A. V. Sulitsin, D. D. Lashchenko, R. K. Mysik, and S. V. Brusnitsyn, “Investigation of solidification process of coppernickel alloy mnzh5-1 (MHK5-1) round ingot during semi-continuous casting,” Non-ferrous Metals, vol. 2015, no. 2, pp. 71–74, 2015.
[6] A. M. Taher, “Effect of alloying elements on the hardness property of 90% copper- 10% nickel alloy,” Materials Science Forum, vol. 872, pp. 13–17, 2016.
[7] X.-G. Dong, J. Zhou, Y.-Y. Yu, Y.-Y. Hu, and A.-J. Mo, “Influence of rare earth elements on mechanical properties and corrosion resistance of Cu-15Ni alloy,” Journal of Donghua University (English Edition), vol. 30, no. 3, pp. 249–253, 2013.
