Tensile behavior of high temperature Cu-Cr-Zr alloy

Abstract

Abstract-The tensile behavior of Cu-Cr-Zr alloy was investigated at different temperatures. The material investigated was heat treated to the following condition: solutionizing 980°C -40 min then water quenching, aging 460°C -4 h. The test temperature was ranged from room temperature to 600°C at intervals of 100°C . Curves describing the tensile properties were obtained. The Vickers hardness, microstructure and fracture surface of the tested alloys were also studied. The results reveal that the tensile strength of Cu-Cr-Zr alloys decreases with the increase of temperatures. Additionally, due to fully recrystallization, a combination of a high tensile strength with a fairly good plasticity can be achieved at 200°C. The suitable working temperature of Cu-Cr-Zr alloy ranges form room temperature to 300°C.The results also indicate that the mechanism of Cu-Cr-Zr alloy fracture is the nucleation, growth, extension and join of microvoid caused by second phase particle.

Development of the material property handbook and database of CuCrZr

“…In the MPH of CuCrZr, a table of chemical compositions has been presented, including the specification in various standards and measured values in different reports or product sheets [8][9][10][11][12][13][14]. For the purposes of this paper, only materials meeting the requirements of the ITER grade CuCrZr composition are considered.…”

Mechanical Behavior and Wear Characteristics of a Conform Extruded C18150 (Cu-Cr-Zr Alloy) Rod

“…In many alloys of Cu, Cu-Cr-Zr alloy showed betterment in terms of mechanical strength. Te suitable working temperature of Cu-Cr-Zr alloy ranges from room temperature to 300 °C, whereas by increasing the temperature, tensile strength decreased [19]. Tus, Cu-Cr-Zr alloys are an upgrade of Cu-Cr alloys that fulflled the strength requirements through a precipitation strengthening mechanism by adding Zr [18,[20][21][22][23].…”