Constitutive Model of Wrought Superalloy GH4066 in Hot Deformation Process
Lecture Notes in Mechanical Engineering Advances in Materials Processing(2018)
摘要
To clarify the high temperature flow stress behavior and microstructures evolution of the wrought superalloy GH4066, the thermal simulation compression tests were conducted at the temperatures of 800, 900, 1000, 1100 and 1150 °C with the strain rate of 0.0003, 0.001, 0.01, 0.1, 1 and 10 s−1 on Gleeble-3800. The test results were used to construct the constitutive model of the superalloy based on the Arrhenius equation modified with the hyperbolic sine form. According to the test results, the dynamic recrystallization happened during the hot compression deformation process. The influence of temperature and strain rate on the dynamic recrystallization was analyzed in this paper, and the results were verified through the metallographic test. The comparison between the experimental and the predicted flow stress showed that the established constitutive model could well reflect the material properties of the superalloy.
更多查看译文
关键词
Wrought superalloy,GH4066,Hot deformation,Material model,Dynamic recrystallization
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要