High strength CuZr alloys prepared by rapid solidification techniques

The effect of cobalt additions on the mechanical and electrical properties of Cu–Cr–Zr melt-spun ribbons

“…The compound was identified as cubic fcc Cu 5 Zr having a lattice constant of 0.67 nm, which was in close agreement with the value of 0.68 nm previously reported by Kneller et al [17]. The mean size of the precipitates measured in as-spun ribbons (82 nm) was larger than that reported by Arnberg et al [13] (20 nm) for Cu-0.34 at.% Zr CBMS ribbons, but within the range of 20-150 nm reported by Morris et al [18] for Cu-5 at.% Zr CBMS ribbons, both in the as-spun condition.…”

Corrosion behavior of copper with minor alloying addition in chloride solution

“…It shows the addition of element Cr and Zr increases the strength of pure copper significantly and keeps the higher conductivities at the same time. The results are well consistent with previous reports [1][2][3][4][5]. The specimens of the pure copper and its alloys used in this study were produced as described in previous studies [15].…”

“…However, it exhibits poor strength which cannot meet the needs of wire. It had been proved that the addition of small amounts of Cr and Zr can increase the strength of copper significantly in room temperature and keep high electrical conductivities simultaneously [1][2][3][4][5]. Owing to the wide application fields, the corrosion behavior of copper and its alloys at room temperature should be concerned.…”

Development of Wear-Resistant Cu-10Cr-3Ag Electrical Contacts with Nano-Al2O3 Dispersion by Mechanical Alloying and High Pressure Sintering

“…[42] Figure 11 shows the calculated wear volume of different samples (1,2,3,4, and 5 along the axis of the abscissa represent Cu-10Cr-3Ag composites high pressure sintered at 600°C and 800°C and 5 wt pct Al 2 O 3 dispersed Cu-10Cr-3Ag alloy hot pressed at 400°C, 600°C, and 800°C, respectively). A typical wear scar developed in 5 wt pct nano-Al 2 O 3 dispersed Cu-10Cr-3Ag composite sintered at 600°C after fretting with 20 N load, 1-mm wear span, and 10 Hz frequency is shown in the inset.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Precipitation or age hardening of these alloys produces fine coherent precipitates that provide the necessary strength in Cu alloys. Furthermore, strength and hardness of the matrix phase may increase with a decrease in grain size following the Hall-Petch relationship.…”