Flow stress model for IN718 accounting for evolution of strengthening precipitates during thermal treatment

被引：89
作者：
Fisk, M. [1 ]
Ion, J. C. [1 ]
Lindgren, L. -E. [2 ]
机构：
[1] Malmo Univ, Fac Technol & Soc, SE-20506 Malmo, Sweden
[2] Lulea Univ Technol, Dept Sci & Engn, SE-97187 Lulea, Sweden
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2014年 / 82卷
关键词：
Dislocations; Strengthening mechanisms; Metallic material; Mechanical testing; Numerical algorithms; Inconel; 718; Gamma double prime; INCONEL; 718; ALLOY; DISLOCATIONS; DEFORMATION; SUPERALLOYS; VACANCIES; BEHAVIOR; SIZE; FE;
D O I：
10.1016/j.commatsci.2013.10.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A flow stress model describing precipitate hardening in the nickel based alloy Inconel (R) 718 following thermal treatment is presented. The interactions between precipitates and dislocations are included in a dislocation density based material model. Compression tests have been performed using solution annealed, fully-aged and half-aged material. Models were calibrated using data for solution annealed and fully-aged material, and validated using data from half-aged material. Agreement between experimental data and model predictions is good. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：531 / 539
页数：9
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