Related Experiment Video
Updated: Mar 18, 2026

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory
Published on: March 7, 2018
Dynamic recrystallization behavior and processing map of the Cu-Cr-Zr-Nd alloy
Yi Zhang1, Huili Sun2, Alex A Volinsky3
1College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003 China ; Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620 USA ; Collaborative Innovation Center of Nonferrous Metals, Luoyang, 471003 Henan Province China.
Abstract:
Hot deformation behavior of the Cu-Cr-Zr-Nd alloy was studied by hot compressive tests in the temperature range of 650-950 °C and the strain rate range of 0.001-10 s(-1) using Gleeble-1500D thermo-mechanical simulator. The results showed that the flow stress is strongly dependent on the deformation temperature and the strain rate. With the increase of temperature or the decrease of strain rate, the flow stress significantly decreases. Hot activation energy of the alloy is about 404.84 kJ/mol and the constitutive equation of the alloy based on the hyperbolic-sine equation was established. Based on the dynamic material model, the processing map was established to optimize the deformation parameters. The optimal processing parameters for the Cu-Cr-Zr-Nd alloy hot working are in the temperature range of 900-950 °C and strain rate range of 0.1-1 s(-1). A full dynamic recrystallization structure with fine and homogeneous grain size can be obtained at optimal processing conditions. The microstructure of specimens deformed at different conditions was analyzed and connected with the processing map. The surface fracture was observed to identify instability conditions.
More Related Videos
08:55Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
14:51An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature
Published on: September 23, 2018
Related Concept Videos
Recrystallization: Solid–Solution Equilibria
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....