Microstructure and Properties of a Hot Rolled-Quenched Cu-Cr-Zr-Mg-Si Alloy

Effects of Zr and (Ni, Si) additions on properties and microstructure of Cu–Cr alloy

“…Since the hot rolled-quenched Cu-Cr(-Zr) alloys are in a supersaturated state [7,26], it would decompose when the temperature is high enough to cause solute atom diffusion and re-distribution, and second phases are precipitated from the metastable alloys resulting in high strength and high electrical conductivity [2]. The high strength arises from the precipitation hardening and work hardening, and the high conductivity is ascribed to the precipitation process which depletes the concentration of dissolved solute atoms in the matrix [26].…”

“…Many investigations on Cu-Cr-Zr system alloys have been conducted, and most of them focused on the improvement of physical and mechanical properties of the alloys, such as strength and conductivity [6,7], ductility [8], thermal stability [9,10], hot deformation performance [11] and fatigue performance [12].…”

Enhanced strength and electrical conductivity of Cu–Zr–B alloy by double deformation–aging process

“…For example, the strength of a multi-element alloyed Cu-8.0Ni-1.8Si-0.6Sn-0.15Mg alloy can be increased by four or five times, but the electrical conductivity is only 26.5% IACS, which limits its practical applications [6]. Extensive literatures have been reported appropriate high strength and high conductivity alloy systems, such as Cu-Cr, Cu-Fe, Cu-Ag and Cu-Ni-Si alloys [7][8][9][10][11][12][13][14], yet it is difficult for them to further acquire a substantial improvement on the strength/conductivity properties. Then many studies have been performed to exploit new alloy systems with an excellent combination of strength and electrical conductivity.…”

“…Thermomechanical treatment containing a double cold deformation and aging process, on the other hand, is one of the most sophisticated techniques applied in precipitation hardened alloys [7,13,19]. Ryu et al [13] reported an enhancement of both tensile strength and electrical conductivity of Cu-Ni-Si alloy through reducing the size of Ni 2 Si precipitates exerted by two-step rolling and aging process.…”

Microstructure and properties of Cu-Cr-Ti alloy with high softening resistance

“…However, as a oxidizing element, composition control of Zr is regarded as a difficult medical problem. Ag [7], Mg [8,9], Ti [10] and rare earth element [11,12] also attract widespread attention of researchers. Youhong Wang [13] come to a conclusion that Ti could refine the microstructure of Cu-Cr alloy by studying the microstructure and resistivity of melt-spun Cu-Cr-Ti ribbon.…”