The Extrusion and SPS of Zirconium–Copper Powders and Studies of Selected Mechanical Properties

Zr-2.5Cu and Zr-10Cu powder mixtures were consolidated in the extrusion process and using the spark plasma sintering technique. In these studies, material tests were carried out in the fields of phase composition, microstructure, hardness and tensile strength for Zr-Cu materials at room temperature (RT) and 400 °C. Fractography analysis of materials at room temperature and 400 °C was carried out. The research took into account the anisotropy of the materials obtained in the extrusion process. For the nonequilibrium SPS process, ZrCu2 and Cu10Zr7 intermetallic compounds formed in the material at sintering temperature. Extruded materials were composed mainly of α-Zr and ZrCu2. The presence of intermetallic compounds affected the reduction in the strength properties of the tested materials. The highest strength value of 205 MPa was obtained for the extruded Zr-2.5Cu, for which the samples were cut in the direction of extrusion. For materials with 10 wt.% copper, more participation of the intermetallic phase was formed, which lowered the mechanical properties of the obtained materials. In addition to brittle intermetallic phases, the materials were characterized by residual porosity, which also reduced the strength properties.

INFLUENCE OF AGROCHEMICAL SOIL PROPERTIES ON YIELD AND CHEMICAL COMPOSITION OF RAUSHAN BARLEY GRAIN

The productivity of barley Raushan 24.9-53.1 tons per hectare on the farm (SKHPK) them. Michurin, Vavozhsky district of the Udmurt Republic for 2013-2019 had a positive average correlation (r = 0,46) with the pH of the arable layer, a positive weak correlation with the content in the arable layer of mobile phosphorus (r = 0,26), exchange potassium (r = 0.12) and humus (r = 0,12). The crop of 2017, had more potassium, sulfur, phosphorus, magnesium, silicon, calcium, sodium, manganese, tin, iron, rubidium, strontium, barium, zirconium, copper, zinc, titanium, selenium, nickel, vanadium, gadolinium, lithium, germanium, cobalt, tungsten, beryllium, cadmium, than their content in the grain of the 2018 crop. In 2018, the yield was lower by 14,2 centner per hectare of the 2017 crop, and barley kernels contained more bromine, aluminum, boron, molybdenum, thorium, chromium, cerium, lanthanum, niobium, tantalum, gallium

Effects of Electrical Process Parameters and Electrode Tool Geometries in EDM of Inconel825 Material Using Zirconium Copper Electrode

The Electrical Discharge Machine (EDM), parameters are investigated during the machining of Inconel 825 by using different tool geometry of zirconium copper electrode. Demand for better MRR, SR, and lower Tool Wear Rate are increasing recently for all materials, the low rigidity and high material removal rate of Inconel alloy offers a challenging task in obtaining output responses. The analysis of output responses such as Metal Removal Rate (MRR) of Inconel 825 material is carried out an excellent result can be obtained by using Taguchi L16 Orthogonal Array under different conditions of Parameters. The response of MRR is considered for improving machining efficiency. Optimal combination of parameters was obtained Taguchi optimization technique. The confirmation experiments results shows that the significant improvement in output responses was obtained. ANOVA have been used to analyze the contribution of individual parameters on Material Removal Rate. The experimental result demonstrates that the Taguchi method satisfies the practical requirements.

ANSONIA ALLOY C15000

Ansonia alloy C15000 is a 0.15% Zr alloy and is often called zirconium copper. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: Cu-798. Producer or source: Ansonia Copper & Brass Inc..