Single-phase equiatomic Co-Cr-Fe-Ni high-entropy alloy with excellent strain gauge sensitivity
Single-phase Co-Cr-Fe-Ni high-entropy alloys boast exceptional mechanical and electrical properties. These alloys are suitable for various functional applications, particularly as strain gauges and high ohmic resistors, due to this fact. The resistance-tension tests of the equiatomic CoCrFeNi high-e...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ural Federal University
2024-11-01
|
| Series: | Chimica Techno Acta |
| Subjects: | |
| Online Access: | https://chimicatechnoacta.ru/article/view/8075 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Single-phase Co-Cr-Fe-Ni high-entropy alloys boast exceptional mechanical and electrical properties. These alloys are suitable for various functional applications, particularly as strain gauges and high ohmic resistors, due to this fact. The resistance-tension tests of the equiatomic CoCrFeNi high-entropy alloy demonstrate higher strain gauge factor (GF) and elastic limit values than commercial strain gauges. In the elongation range of ε = 0–0.2%, the resistivity of the studied alloys follows a strictly linear pattern with respect to the applied load, up to 435 MPa. Heat treatment enhances the GF value of the as-cast alloy from 3.07 to 3.45. The annealing process changes the sample structure, resulting in an increase in the GF. |
|---|---|
| ISSN: | 2411-1414 |