Dynamic behavior and a modified Johnson-Cook constitutive model of Inconel 718 at high strain rate and elevated temperature

被引：148
|
作者：
Wang, Xiangyu [1 ,2 ]
Huang, Chuanzhen [1 ,2 ]
Zou, Bin [1 ,2 ]
Liu, Hanlian [1 ,2 ]
Zhu, Hongtao [1 ,2 ]
Wang, Jun [1 ,2 ]
机构：
[1] Shandong Univ, Ctr Adv Jet Engn Technol CaJET, Sch Mech Engn, Jinan 250061, Peoples R China
[2] Shandong Univ, Minist Educ, Key Lab High Efficiency & Clean Mech Manufacture, Jinan 250061, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 580卷
关键词：
Inconel; 718; High strain rate; Elevated temperature; Modified Johnson-Cook model; NICKEL-BASED ALLOYS; CHIP FORMATION; RESIDUAL-STRESSES; PREDICTION; SIMULATION;
D O I：
10.1016/j.msea.2013.05.062
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Constitutive model is very important in finite element simulation of Inconel 718 cutting process. However, there are few constitutive models for Inconel 718 which are suitable for the cutting process. In this research, firstly, dynamic behavior of Inconel 718 at high strain rate and elevated temperature of the same order as the practical cutting process was obtained using SHPB(Split Hopkinson Pressure Bar) test. In the tests, the strain rate was 5000-11000 s(-1), and the temperature was 500-800 degrees C. Secondly, thermal and strain rate effect were discussed. Strain rate softening effect was found at high strain rate and discussed, and it was temperature dependent. Finally, a modified Johnson-Cook model was established. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：385 / 390
页数：6
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