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Copper effects on the microstructures and deformation mechanisms of CoCrFeNi high entropy alloys.
- Source :
- Applied Physics Letters; 4/1/2024, Vol. 124 Issue 14, p1-9, 9p
- Publication Year :
- 2024
-
Abstract
- In situ neutron diffraction experiments have been performed to investigate the deformation mechanisms on CoCrFeNi high entropy alloys (HEAs) with various amounts of doped Cu. Lattice strain evolution and diffraction peak analysis were used to derive the stacking fault probability, stacking fault energy, and dislocation densities. Such diffraction analyses indirectly uncovered that a lower degree of Cu doping retained the twinning behavior in undoped CoCrFeNi HEAs, while increasing the Cu content increased the Cu clusterings which suppressed twinning and exhibited prominent dislocation strengthening. These results agree with direct observations by transmission electron microscopy. [ABSTRACT FROM AUTHOR]
- Subjects :
- COPPER
TRANSMISSION electron microscopy
ENTROPY
MICROSTRUCTURE
NEUTRON diffraction
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 124
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 176472891
- Full Text :
- https://doi.org/10.1063/5.0201647