文九巴,刘阳阳,贺俊光

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

利用Gleeble-1500D热模拟试验机进行了5052铝合金室温单向压缩和拉伸实验,根据实验数据得到了材料室温变形的本构方程为:σ=218.873ε0.073ε·0.0119+27.309,断裂门槛值范围为:0.121~0.157,并由单向压缩和拉伸过程的数值模拟结果验证了所得本构方程和断裂门槛值范围的正确性。基于此,进行了室温轧制边缘裂纹生长过程的模拟并通过轧制实验对模拟结果进行了验证。结果表明,在总压下量为60%条件下,3道次轧制为最佳轧制道次,边缘裂纹长度最小,模拟值与实验值分别为1.3 mm和1.4 mm,误差为7%,其一致性很好。

关键词(KeyWords)： 5052铝合金;数值模拟;室温轧制;边缘裂纹

Abstract:

Keywords:

基金项目(Foundation): 河南省教育厅重点攻关项目(14A430001,15A430024)

作者(Author): 文九巴,刘阳阳,贺俊光

DOI: 10.13289/j.issn.1009-6264.2018-0094

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