Abstract
Particulate reinforced metal matrix composites are confronted with the problem of particle aggregation emerging in the process of solidification. It sharply deteriorates the mechanical properties of the composites. In order to improve the particle distribution, in situ TiB2/Cu composites were prepared using Ti and Cu-B master alloys in a vacuum medium frequency induction furnace equipped with a rotating magnetic field (RMF). The effect of RMF magnetic field intensity employed on the particles distribution, mechanical properties and electrical conductivity of the TiB2/Cu composites were investigated. The results show that with the applied RMF, TiB2 particles are homogeneously distributed in the copper matrix, which significantly improves the mechanical properties and electrical conductivity of TiB2/Cu composites. The mechanism of RMF may be ascribed to the following two aspects. On one hand, the electromagnetic body force generated by appropriate RMF drives forced convection in the equatorial plane of composite melt during solidification. On the other hand, a secondary flow in the meridional plane is engendered by a radial pressure gradient, thus making a strong agitation in the melt. These two effects result in a homogenous dispersion of TiB2 particles in the copper matrix, and hence excellent properties of TiB2/Cu composites were obtained.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Tjong SC, Ma ZY. “Microstructural and mechanical characteristics of in situ metal matrix composites,” Mat Sci Eng R, (29)(2000) ,49–113.
Sobhani M, Mirhabibi A, Arabi H, Brydson RMD. “Effects of in situ formation of TiB2 particles on age hardening behavior of Cu-1 wt% Ti-1 wt% TiB2,” Mat Sci Eng A-Struct, (577)(2013), 16–22.
Bozic D, Stasic J, Ruzic J, Vilotijevic M, Rajkovic V. “Synthesis and properties of a Cu-Ti-TiB2 composite hardened by multiple mechanisms,” Mat Sci Eng A-Struct, (528)(2011), 8139–8144.
Biselli C, Morris DG, Randall N. “Mechanical alloying of high-strength copper-alloys containing TiB2 and Al2O3 dispersoid particles,” Scripta Metal Mater, (30)(1994),1327–1332.
Guo M, Shen K, Wang M. “Relationship between microstructure, properties and reaction conditions for Cu-TiB2 alloys prepared by in situ reaction,” Acta Mater, (57)(2009),4568–4579.
Lee AK, Sanchezcaldera LE, Oktay ST, Suh NP. “Liquid-metal mixing process tailors MMC microstructures,” Adv Mater Process, (142)(1992), 31–34.
Kim JH, Yun JH, Park YH, Cho KM, Choi ID, Park IM. “Manufacturing of Cu-TiB2 composites by turbulent in situ mixing process,” Mat Sci Eng A-Struct, (449)(2007), 1018–1021.
Ibrahim IA, Mohamed FA, Lavernia EJ. “Particulate reinforced metal matrix composites-a review,” J Mater Sci, (26)(1991), 1137–1156.
Yan ZM, Chen ML, Yang L, Yang J, Gao H, Li TJ. “Influence of rotating magnetic field on horizontal continuous casting of CuNi10Fe1Mn alloy hollow billet: from solidification structures to segregation of Ni and growth morphologies of Ni rich phase,” Int J Cast Metal Res, (26)(2013), 37–42.
Dold P, Benz KW. “Rotating magnetic fields: Fluid flow and crystal growth applications,” Prog Cryst Growth Ch, (38)(1999),7–38.
Willers B, Eckert S, Michel U, Haase I, Zouhar G. “The columnar-to-equiaxed transition in Pb-Sn alloys affected by electromagnetically driven convection,” Mat Sci Eng A-Struct, (402)(2005),55–65.
Lu L, Lai MO, Chen FL. “Al-4 wt% Cu Composite reinforced with in-situ TiB2 particles,” Acta Mater, (45)(1997), 4297–4309.
Schumacher P, Greer AL, Worth J, Evans PV, Kearns MA, Fisher P, et al. “New studies of nucleation mechanisms in aluminium alloys: implications for grain refinement practice,” Mater Sci Technol-lond, (14)(1998),394–404.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2015 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Zou, C., Wang, W., Kang, H., Li, M., Li, R., Wang, T. (2015). Application of Rotating Magnetic Field to Improve the Reinforcement Distribution, Electrical Conductivity and Mechanical Properties of Copper Matrix Composite. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_1
Download citation
DOI: https://doi.org/10.1007/978-3-319-48127-2_1
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48608-6
Online ISBN: 978-3-319-48127-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)