航空材料学报2026，Vol.46Issue(9)：45-54,10.DOI:10.11868/j.issn.1005-5053.2026.000062
GH3230高温合金单轴拉伸性能和持久性能预测
Prediction of uniaxial tensile properties and stress rupture properties for GH3230 superalloy
付书红 1杨亚锟 1李青宇 2曹胜 3赵张龙 3王涛1
作者信息
- 1. 中国航发北京航空材料研究院 先进高温结构材料重点实验室,北京 100095
- 2. 中国核动力研究设计院 核反应堆系统设计技术重点实验室,成都 610213
- 3. 西北工业大学 材料学院,西安 710072
- 折叠
摘要
Abstract
GH3230 superalloy is widely used in the fields of aero-engine and nuclear industry.Due to its extensive application,the accurate assessment of service life of its components highly relies on the precise prediction of uniaxial tensile properties and stress rupture life.This paper focuses on investigating uniaxial tensile properties of this superalloy at different temperatures,as well as its stress rupture life under various combinations of temperature and stress.Correspondingly,the R-O constitutive model and the Chaboche constitutive model are established to describe the tensile behaviour of the alloy,while the isothermal line extrapolation method and the L-M parameter model are developed for predicting its stress rupture life.The results indicate that in terms of predicting uniaxial tensile properties,compared to the Chaboche constitutive model,the R-O model can only reasonably predict the stress near the yield point,showing a significant deviation in the overall prediction trend of the stress-strain curve.In contrast,the Chaboche constitutive model can more effectively describe the tensile behaviour of the GH3230 superalloy,with fitting correlation coefficients close to 0.9 at most test temperatures.Regarding the prediction of stress rupture life,both the isothermal line extrapolation method and the L-M method demonstrate high prediction accuracy.These models are capable of providing reasonable predictions for the stress rupture life of the superalloy under different service conditions.关键词
GH3230高温合金/单轴拉伸性能/持久寿命/性能预测/本构模型Key words
GH3230 superalloy/uniaxial tensile property/stress rupture life/property prediction/constitutive model分类
航空航天引用本文复制引用
付书红,杨亚锟,李青宇,曹胜,赵张龙,王涛..GH3230高温合金单轴拉伸性能和持久性能预测[J].航空材料学报,2026,46(9):45-54,10.
