Study on the Constitutive Equation of High-Temperature of High-Elastic Cu-20.0Ni-5.0Sn-0.25Zn-0.22Mn Alloy-Reference-Cited by-同舟云学术

Study on the Constitutive Equation of High-Temperature of High-Elastic Cu-20.0Ni-5.0Sn-0.25Zn-0.22Mn Alloy

Published:2019-06 Issue: Volume:956 Page:169-178
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Cai Geng Sheng¹,Cai Zhi Hong¹,Liu Fu Ping¹,Yu Hua Gang¹

Affiliation:

1. Guangdong Chinese-Ukrainian Institute

Abstract

The high-elastic Cu-20.0Ni-5.0Sn-0.25Zn-0.22Mn alloy was designed and prepared using a 830°C/2h+850°C/2h dual-stage homogenization annealing process. The true stress-strain curves of well annealed Cu-20.0Ni-5.0Sn-0.25Zn-0.22Mn alloy were plotted as a function of compressive temperature and strain rate. The results showed that the stage division of thermal compression deformation is temperature dependent, which involves work hardening, dynamic recovery and recrystallization stages. The maximum value of the true stress increases as the strain rate gets larger, but decreases as the deformation temperature rises. The high temperature compression deformation process of the alloy is a thermal activated process, and the corresponding constitutive equation of the true stress-strain is established.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.956.169.pdf

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