典型文献
Modeling of microstructural evolution and flow behavior of superalloy IN718 using physically based internal state variables
文献摘要：
Microstructural evolution and flow behavior greatly affect the hot forming process of IN718.In this research,hot deformation behaviors of IN718 were inves-tigated by performing hot compression tests at temperature range of 1000-1100℃with strain rates of 0.1-20.0 s-1.By incorporating physically based internal state variables such as dislocation density,volume fraction of dynamic recrystallization,and grain size,a set of unified viscoplastic constitutive equations were developed to predict the microstructural evolution and flow behavior of IN718.The material constants were determined using a genetic algo-rithm(GA)-based optimization method.Comparisons of the computed and experimental results indicate that the constitutive equations established in this study can accu-rately describe the hot deformation behavior and microstructural evolution of IN718.
文献关键词：
中图分类号：
作者姓名：
Xue-Feng Tang;Bao-Yu Wang;Ning Zhang;Yuan-Ming Huo;Jing Zhou
作者机构：
School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China
文献出处：
引用格式：
[1]Xue-Feng Tang;Bao-Yu Wang;Ning Zhang;Yuan-Ming Huo;Jing Zhou-.Modeling of microstructural evolution and flow behavior of superalloy IN718 using physically based internal state variables)[J].稀有金属（英文版）,2022(08):2759-2766
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B类：
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AB值：
0.618316
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