镍基高温合金热变形过程组织预测研究综述
Review on microstructure prediction during hot deformation of nickel-based superalloys
江剑 1赵一帆 2邓琦 2权铭国 2权国政2
作者信息
- 1. 江苏省船舶动力系统零件先进制造工程技术研究中心,江苏 南京211121;南京中远海运船舶设备配件有限公司,江苏 南京 211121
- 2. 重庆大学,重庆 400044
- 折叠
摘要
本文综述了镍基合金的高温塑性变形行为及建模、微观组织演变规律及建模的研究进展,阐述了利用有限元技术预测热变形显微组织的研究现状,得到如下结论:镍基合金的高温塑性变形行为表征模型主要有唯象本构模型和神经网络模型;动态再结晶模型能够准确描述镍基合金热变形过程的微观组织演变,结合有限元模拟技术有助于实现热变形过程的组织预测及调控.
Abstract
In this paper, the research progress of high temperature plastic deformation behavior and model-ing, microstructure evolution law and modeling are reviewed, and the research status of prediction of forging microstructure by finite element technique is described. The conclusions are as follows: The characterization models of high temperature plastic deformation behavior of nickel-based alloys mainly include phenomenolog-ical constitutive model and neural network model. The dynamic recrystallization model can accurately de-scribe the microstructure evolution during the hot deformation of nickel-based alloy, and the finite element simulation technology is helpful to realize the microstructure prediction and control during the forging pro-cess.
关键词
镍基高温合金/热变形/微观组织/本构模型Key words
Nickel-based superalloy/Forging/Microstructure/Constitutive model引用本文复制引用
出版年
2024
NETL
NSTL
万方数据