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under constant strain. Furthermore, the effects of temperature and strain rate on the deformation behaviors are described by Zener-Hollomon (Z) parameter. The Arrhenius model can be denoted as [31,32......
值分别为0.1327和0.0018. 同时,FLITTA进一步提出了一个摩擦模型的推广形式,使之适合于所有的挤压工艺条件及挤压全过程. (4) 式中:是平均摩擦因数,它随挤压行程的变化而变化;Zd是Zener-Hollomon参数的平均值;α......
, indicating that dislocation viscous glide is the dominant deformation mechanism. Equation (4) is rewritten by introduction of Z (Zener-Hollomon) parameter as follows [50]:  ......
]. Transactions of Nonferrous Metals Society of China, 2018, 28: 2162-2172. [11] LI Cheng-bo, WANG Shao-lin, ZHANG Duan-zheng, LIU Sheng-dan, SHAN Zhao-jun, ZHANG Xin-ming. Effect of Zener-Hollomon parameter... precipitating during homogenization treatment. The commonly used form of Zener pinning effect (PZ) is formulated as [39]  ......