Ultra-high tensile strength nanocrystalline CoCrNi equi-atomic medium entropy alloy processed by high-pressure torsion
A nanocrystalline CoCrNi alloy of ~50 nm grain size with the ultra-high ultimate tensile strength of ~2.2 GPa and fracture strain of ~9% was fabricated using high-pressure torsion. The presence of high density of nano-twins, stacking faults, dislocations, and nano-grains is attributed to the superio...
Saved in:
Published in | Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 735; pp. 394 - 397 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Lausanne
Elsevier B.V
26.09.2018
Elsevier BV |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | A nanocrystalline CoCrNi alloy of ~50 nm grain size with the ultra-high ultimate tensile strength of ~2.2 GPa and fracture strain of ~9% was fabricated using high-pressure torsion. The presence of high density of nano-twins, stacking faults, dislocations, and nano-grains is attributed to the superior mechanical properties. |
---|---|
ISSN: | 0921-5093 1873-4936 |
DOI: | 10.1016/j.msea.2018.08.079 |