Influence of Trapped Gas on Pore Healing under Hot Isostatic Pressing in Nickel-Base Superalloys
Abstract
:1. Introduction
2. Micromechanical Modeling
2.1. Crystal Plasticity Model
2.2. Model Calibration
2.3. Modeling Gas inside Pores
3. Numerical Study and Results
3.1. Influence of HIP Processing Conditions
3.2. Influence of Pore Shape
3.3. Influence of Pore Size
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviations
HIP | Hot isostatic pressing |
AM | Additive manufacturing |
CP | Crystal plasticity |
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Parameter | Value | Unit |
---|---|---|
G | 69.4 | GPa |
b | 0.254 | nm |
3.36 × 10 [26] | ||
292 [26] | ||
A | 1.2 × 10 | - |
3.0 | - | |
0.05 | - | |
40 | MPa | |
600 | MPa | |
60 | MPa | |
60 | MPa | |
2.0 | - |
(kg mol) | R (JKmol) | (MPa) | (MPa) | (K) |
---|---|---|---|---|
0.039948 | 8.314 | 0 | 0.101 | 1728.15 |
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Prasad, M.R.G.; Gao, S.; Vajragupta, N.; Hartmaier, A. Influence of Trapped Gas on Pore Healing under Hot Isostatic Pressing in Nickel-Base Superalloys. Crystals 2020, 10, 1147. https://doi.org/10.3390/cryst10121147
Prasad MRG, Gao S, Vajragupta N, Hartmaier A. Influence of Trapped Gas on Pore Healing under Hot Isostatic Pressing in Nickel-Base Superalloys. Crystals. 2020; 10(12):1147. https://doi.org/10.3390/cryst10121147
Chicago/Turabian StylePrasad, Mahesh R. G., Siwen Gao, Napat Vajragupta, and Alexander Hartmaier. 2020. "Influence of Trapped Gas on Pore Healing under Hot Isostatic Pressing in Nickel-Base Superalloys" Crystals 10, no. 12: 1147. https://doi.org/10.3390/cryst10121147
APA StylePrasad, M. R. G., Gao, S., Vajragupta, N., & Hartmaier, A. (2020). Influence of Trapped Gas on Pore Healing under Hot Isostatic Pressing in Nickel-Base Superalloys. Crystals, 10(12), 1147. https://doi.org/10.3390/cryst10121147