Assessment of Internal Stresses Using Dislocation Dipole Heights in Cyclically Deformed [001] Copper Single Crystals
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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This Study (Cu) | Cu [13] | Al [11] | Ni [15] | |||||
---|---|---|---|---|---|---|---|---|
Labyrinth Walls | Labyrinth Channels | Dipole Bundles (Veins) | Channels | Dipole Bundles (Veins) | Channels | PSB Walls | PSB Channels | |
Maximum Dipole Height (nm) | 4.3 | 4 | 15 | 12 | 31 | 32 | 6 | 7.1 |
Dipole Stress for hmax (MPa) | 270 (h = 4.15) | 52 (h = 13.5) | 16 (h = 31.5) | 186.6 (h = 6.55) | ||||
Applied Resolved Shear Stress (MPa) | 112 | 19 | 20 | 50 | ||||
saturation | half of saturation stress | pre-saturation | saturation | |||||
τd/τa (for hmax) | 2.4 | 2.7 | 0.8 | 3.7 | ||||
Slip | polyslip | single slip | single slip | single slip | ||||
SFE mJ/m2 [31,32,33,34] | 60 | 60 | 200 | 90 | ||||
T/Tm | 0.22 | 0.22 | 0.12 | 0.17 | ||||
Strain Amplitude | 0.40% | Plastic only = 0.125% | Plastic only = 0.12% | 0.40% | ||||
Strain Rate | 2 × 10−3 | 2.5 × 10−3 | 2 × 10−4 | 10−3 | ||||
Number of Cycles | 157 | 200 | 560 | - |
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Ermagan, R.; Sauzay, M.; Kassner, M.E. Assessment of Internal Stresses Using Dislocation Dipole Heights in Cyclically Deformed [001] Copper Single Crystals. Metals 2020, 10, 512. https://doi.org/10.3390/met10040512
Ermagan R, Sauzay M, Kassner ME. Assessment of Internal Stresses Using Dislocation Dipole Heights in Cyclically Deformed [001] Copper Single Crystals. Metals. 2020; 10(4):512. https://doi.org/10.3390/met10040512
Chicago/Turabian StyleErmagan, Roya, Maxime Sauzay, and Michael Ernest Kassner. 2020. "Assessment of Internal Stresses Using Dislocation Dipole Heights in Cyclically Deformed [001] Copper Single Crystals" Metals 10, no. 4: 512. https://doi.org/10.3390/met10040512