基于Hansel-Spittel模型的齿环用HAl61-4-3-1合金本构模型构建  

Construction of High-temperature Constitutive Model of HAl61-4-3-1 Alloy for Synchronizer Ring Based on Hansel-Spittel Mode

作　　者：尹小燕[1] 骆静[1] 朱杰[2] YIN Xiaoyan;LUO Jing;ZHU Jie(The Engineering&Technical College of Chengdu University of Technology,Leshan 614000,China;School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China)

机构地区：[1]成都理工大学工程技术学院,四川乐山614000 [2]江苏科技大学材料科学与工程学院,江苏镇江212000

出　　处：《重庆理工大学学报（自然科学）》2021年第1期111-117,167,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学青年基金项目(51905232);成都理工大学工程技术学院基金项目(C122018013)。

摘　　要：采用Gleeble3500热模拟实验机对齿环用HAl61-4-3-1合金进行单道次压缩实验,研究了其在600~800℃和应变速率0.01~10 s-1条件下的流变应力行为;根据真应力-应变曲线,基于Hansel-Spittel模型构建该合金的本构模型,并进行统计学和有限元模拟验证。结果表明:该合金流变应力值与温度、应变速率和变形量之间成非线性关系,与变形温度呈负相关、与应变速率呈正相关;基于Hansel-Spittel本构模型的预测值与实验结果吻合良好,平均相对误差为6.0428%,相关系数为0.9941,模型可准确地预测该材料的流变应力;数值模拟的力-位移曲线与实验结果曲线基本吻合,总误差为4.6%,为后续齿环的精密塑性成形有限元模拟提供数据支撑。The single-pass compression test of HAl61-4-3-1 alloy for synchronizer ring was carried out using a Gleeble 3500 thermo-simulation machine,and the flow stress behavior at deformation temperature of 600~800℃and strain rate of 0.01~10 s-1 was investigated.Based on true stressstrain curves,the flow stress constitutive model of the alloy was established by Hansel-Spittel model,and was verified by statistical and finite element simulation.The results show that the flow stress of HAl61-4-3-1 alloy has a nonlinear relationship with temperature,strain rate and strain.Furthermore,its flow stress value increases with the increasing strain rate and decreasing deformation temperature.The predictions based on the Hansel-Spittel constitutive model agree well with the experimental results.The average absolute relative error(AARE)is 6.0428%and the correlation coefficient is0.9941.The model could predict the flow stress of HAl61-4-3-1 alloy accurately.The total error is4.6%,which provides data support for the follow-up finite element simulation of precision plastic forming of gear ring.

关 键 词：HAl61-4-3-1合金 流变应力 本构模型 Hansel-Spittel模型 

分 类 号：TG146.1[金属学及工艺—金属材料]