The thermodynamic analytical models for steady-state of continuous drive friction welding based on the maximum entropy production principle

被引：7
|
作者：
Xiong, J. T. [1 ,2 ]
Yuan, L. [1 ,2 ]
Du, Y. J. [2 ]
Shi, J. M. [2 ]
Li, J. L. [2 ]
机构：
[1] Northwestern Polytech Univ, Stare Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Key Lab Frict Welding Technol, Xian 710072, Shaanxi, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2019年 / 159卷
关键词：
Continuous drive friction welding; Severe plastic deformation; Analytical model; Thermodynamics; CONSTITUTIVE-EQUATIONS; MECHANICAL-PROPERTIES; FLOW-STRESS; DEFORMATION; TEMPERATURE; ALLOY; BEHAVIOR; STEEL; MICROSTRUCTURE;
D O I：
10.1016/j.applthermaleng.2019.113840
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An analytical model was developed based on the thermodynamic theory of Onsager-Ziegler maximum entropy production principle (OZ-MEPP) and the relevant dynamic laws, and used for characterizing the steady-state system of the severe plastic deformation (SPD) produced by continuous drive friction welding (CDFW) without any pre-assumed or measured response parameters. The accuracy and universality of the model were verified by the CDFW experiments of eight kinds of alloys, the results of which indicated that the model could precisely predict the temperature, axial shortening rate, welding power. Moreover, the coefficient of friction, traditionally regarded as an empirical parameter, could be forecasted too.
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页数：10
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