A Comparative Investigation on the Capability of Modified Zerilli-Armstrong and Arrhenius-Type Constitutive Models to Describe Flow Behavior of BFe10-1-2 Cupronickel Alloy at Elevated Temperature

被引:10
|
作者
Cai, Jun [1 ]
Lei, Ying [2 ]
Wang, Kuaishe [1 ]
Zhang, Xiaolu [3 ]
Miao, Chengpeng [4 ]
Li, Wenbing [4 ]
机构
[1] Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Peoples R China
[2] Xian Elect Engn Res Inst, Xian 710100, Peoples R China
[3] Shaanxi Mkt Co, PetroChina Co Ltd, Xian 710004, Peoples R China
[4] Jinchuan Grp Co Ltd, Jinchang 737104, Peoples R China
关键词
Arrhenius-type model; BFe10-1-2 cupronickel alloy; constitutive equation; flow stress; modified Zerilli-Armstrong model; PERIODIC VOLTAGE MODULATION; HOT DEFORMATION-BEHAVIOR; CU-NI ALLOY; MECHANICAL-PROPERTIES; STRAIN-RATE; PREDICT; CORROSION; STRESS; MICROSTRUCTURE; EQUATION;
D O I
10.1007/s11665-016-2005-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
True stress and true strain data obtained from isothermal compression tests on a Gleeble-3800 thermo-mechanical simulator, in a wide range of temperatures (1073-1323 K) and strain rates (0.001-10 s(-1)), has been used to evaluate the material constants of two constitutive models: the modified Zerilli-Armstrong and the strain compensation Arrhenius-type models. Furthermore, a comparative study was conducted on the capabilities of the two models in order to represent the elevated temperature flow behavior of BFe10-1-2 cupronickel alloy. The suitability levels of these two models were evaluated by comparing the accuracy of their predictions of deformation behavior, correlation coefficient (R), average absolute relative error (AARE), relative errors of prediction, and the number of material constants. The results show that the predicted values of these two models agree well with the experimental values of BFe10-1-2 cupronickel alloy except at the temperature of 1123 K and the strain rate of 1 s(-1). Meanwhile, the strain compensated Arrhenius-type model can track the deformation behavior of BFe10-1-2 cupronickel alloy more accurately throughout the entire temperature and strain rate range, while fewer material constants are involved in the modified Zerilli-Armstrong model.
引用
收藏
页码:1952 / 1963
页数:12
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