δ相时效态GH4169合金Zerilli-Armstrong本构模型及其参数反求方法  

Zerilli-Armstrong constitutive model ofδphase-aged GH4169 alloy and its parameters inversion method

作　　者：苏志毅 陈学文[1] 杨圳 孙佳伟 赵文侠 周正 毛怡然 SU Zhi-yi;CHEN Xue-wen;YANG Zhen;SUN Jia-wei;ZHAO Wen-xia;ZHOU Zheng;MAO Yi-ran(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471023,China;AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China)

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471023 [2]中国航发北京航空材料研究院,北京100095

出　　处：《塑性工程学报》2024年第8期133-139,共7页Journal of Plasticity Engineering

基　　金：国家重点研发计划(2020YFB2008400);国家自然科学基金资助项目(51575162)。

摘　　要：在Gleeble-1500D型热模拟试验机上进行了δ相时效态GH4169合金的高温压缩试验。试验温度为950~1040℃、应变速率为0.005~1 s^(-1)。为了能建立准确描述该合金流动行为的本构模型,考虑应变对Zerilli-Armstrong本构模型材料参数的影响,提出并采用了一种基于多岛遗传算法的参数反求方法建立了该材料考虑应变补偿的Zerilli-Armstrong本构模型。借助相关系数、平均绝对相对误差等标准统计参数定量评估了该本构模型预测的准确性。结果表明:考虑应变补偿的Zerilli-Armstrong本构模型具有较高的预测准确性,其相关系数和平均绝对相对误差分别为0.996和3.189%。The high-temperature compression experiments ofδ-phase aged GH4169 alloy was carried out on Gleeble-1500D thermal simulation testing machine.The experiments temperature was 950-1040℃and the strain rate was 0.005-1 s^(-1).To establish the constitutive model that can accurately describe the flow behavior of the alloy,the influence of strain on the material parameters of the Zerilli-Armstrong constitutive model was considered.A parameter inversion method based on the multi-island genetic algorithm was proposed and adopted to establish the Zerilli-Armstrong constitutive model of the material considering strain compensation.With the help of standard statistical parameters such as correlation coefficient and average absolute relative error,the prediction accuracy of the constitutive model was quantitatively evaluated.The results show that the Zerilli-Armstrong constitutive model considering strain compensation has high prediction accuracy,and its correlation coefficient and average absolute relative error are 0.996 and 3.189%,respectively.

关 键 词：δ相时效态GH4169合金 Zerilli-Armstrong本构模型 反求方法 应变补偿 

分 类 号：TG146.1[一般工业技术—材料科学与工程]