Viscoplastic and temperature behavior of Zn–Cu–Ti alloy sheets: experiments, characterization, and modeling

Journal of Materials Research and Technology

Diego Celentano¹  Francisco Alister²  Javier Signorelli²  Pierre-Olivier Bouchard³  Daniel Pino Muñoz⁴  Marcela Cruchaga⁴ 

[1] Corresponding author.;Department of Mechanical and Metallurgical Engineering, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Chile;Instituto de Física Rosario (UNR-CONICET), Ocampo y Esmeralda, Rosario, Santa Fe, Argentina;MINES ParisTech, PSL Research University, CEMEF-Centre de Mise en Forme des Matériaux, CNRS UMR 7635, CS 10207 Rue Claude Daunesse, 06904, Sophia Antipolis Cedex, France;

关键词: Zinc alloys;    Zn–Cu–Ti;    CPB-06;    Johnson–Cook;    Strain-rate;    Temperature influence;   

DOI  :  

来源: DOAJ

【 摘 要 】

It has been experimentally observed that the Zn–Cu–Ti zinc alloy shows a strong influence of strain rate and temperature on its plastic behavior. A significant change in the material response is seen with relatively small strain rate variations or temperature. In this work, these effects are addressed through the Cazacu–Plunket–Barlat 2006 (CPB-2006) yield criterion and the Johnson–Cook hardening law. The tests were carried out over the three main directions: rolling, diagonal, and transversal. Three strain rate conditions (0.002, 0.02, and 0.2 s−1) and three temperatures (20, 60, and 80 °C) were tested. Although the experimental results exhibit a significant influence of the strain rate and temperature on stress–strain curves for all tested directions, such two variables do not practically affect the Lankford coefficients. The proposed model calibration procedure is found to describe the material responses properly under the studied conditions.

【 授权许可】

Unknown