高温高速环境下Inconel625合金热变形行为的数学描述

Mathematical Description of Thermal Deformation Behavior of Alloy Inconel625 Under High-temperature and High-rate Environment

研究了Inconel625合金的热变形行为。结果表明,在变形温度为1 000～1 200℃,应变速率为10～80 s^-1条件下,Inconel625合金的热变形行为呈现出持续硬化＋动态软化的过程。所建立的高温高速下Inconel625合金的热变形本构方程,能够较好的表达应变速率以及变形温度和峰值应力的关系。

The thermal deformation behavior of the alloy Inconel625 was investigated. The results show that the thermal deformation behavior presents the process of continuous hardening and dynamic softening under the deformation temperature of 1 000-1 200 ℃ and strain rate of 10-80 s^-1. And as-established constitutive equation of the alloy Inconel625 under the high-temperature and high-rate environment can reflect the relationship of the stain rate, deformation temperature and peak stress.