Email this article 
Single-phase equiatomic Co-Cr-Fe-Ni high-entropy alloy with excellent strain gauge sensitivity
Abstract
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.
Keywords
Full Text:
PDFReferences
Yeh JW, Chen SK, Lin SJ, Gan JY, Chin TS., Shun TT, Tsau CH, Chang SY. Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes. Adv Engin Mater. 2010;6:299–303. doi:10.1002/adem.200300567
Cantor B. Multicomponent high-entropy Cantor alloys. Prog Mater Sci. 2021;120:100754. doi:10.1016/j.pmatsci.2020.100754
Uporov SA, Evdokimov IV, Ryltsev RE, Sterkhov EV, Bykov VA, Sidorov VA, Chtchelkatchev NM. High entropy alloys as strain-sensitive materials, Intemetalics. 2024;170:108334. doi:10.1016/j.intermet.2024.108334
Cantor B, Chang ITH, Knight P, Vincent AJB. Microstructural development in equiatomic multicomponent alloys. Mater Sci Engin A. 2004;375–377:213–218. doi:10.1016/j.msea.2003.10.257
Jin K, Sales BC, Stocks GM, Samolyuk GD, Daene M, Weber WJ, Zhang Y, Bei H. Tailoring the physical properties of Ni-based single-phase equiatomic alloys by modifying the chemical complexity. Sci Rep. 2016;6:20159. doi:10.1038/srep20159
Kao YF, Chen SK, Chen TJ, Chu PC, Yeh JW, Lin SJ. Electrical, magnetic, and Hall properties of AlxCoCrFeNi high-entropy alloys. J Alloys Compd. 2011;509(5):1607–1614. doi:10.1016/j.jallcom.2010.10.210
Wu Z, Bei H, Otto F, Pharr GM, George EP. Recovery, recrystallization, grain growth and phase stability of a family of FCC-structured multi-component equiatomic solid solution alloys, Intermetallics. 2014;46:131–140. doi:10.1016/j.intermet.2013.10.024
Radhakrishnan M, McKinstry M, Chaudhary V, Nartu MSKKY, Mani Krishna KV, Ramanujan RV, Banerjee R, Dahotre NB. Effect of chromium variation on evolution of magnetic properties in laser direct energy additively processed CoCrxFeNi alloys. Scripta Materialia. 2023;226:115269. doi:10.1016/j.scriptamat.2022.115269
Laplanche G, Gadaud P, Bärsch C, Demtröder K, Reinhart C, Schreuer J, George EP. Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy. J Alloys Compd. 2018;746:244–255. doi:10.1016/j.jallcom.2018.02.251
Sciammarella CA, Sciammarella FM. Strain Gages – Introduction to Electrical Strain Gages. In Experimental Mechanics of Solids. Publisher: John Wiley & Sons, Ltd; 2012. 41–73. doi:10.1002/9781119994091.ch3
Xing L, Yansheng Z. The strain sensitivity coefficient of resistance for an FeMnAlCr antiferromagnetic alloy. J Phys D Appl Phys. 1996;29(3):511–513. doi:10.1088/0022-3727/29/3/004
Kazi IH, Wild PM, Moore TN, Sayer M. Characterization of sputtered nichrome (Ni–Cr 80/20 wt.%) films for strain gauge applications. Thin Solid Films. 2006;515(4):2602–2606. doi:10.1016/j.tsf.2005.10.077
Klaas D, Ottermann R, Dencker F, Wurz MC. Development, Characterisation and High-Temperature Suitability of Thin-Film Strain Gauges Directly Deposited with a New Sputter Coating System.Sensors. 2020; 20(11):3294. doi:10.3390/s20113294
Schmid P, Triendl F, Zarfl C, Schwarz S, Artner W, Schneider M, Schmid U. Influence of the AlN/Pt-ratio on the electro-mechanical properties of multilayered AlN/Pt thin film strain gauges at high temperatures. Sensors Actuators A Phys. 2020;302:111805. doi:10.1016/j.sna.2019.111805
Cui Y, Li X, Zhang T, Ding W, Yin J. Development of High-Temperature Wire-Grid Thin Film Strain Gauges. Sensors. 2022; 22(19):7595. doi:10.3390/s22197595
Ustinovshikov Y. Phase transformations in alloys of the Ni–Cr system. J Alloys Compd. 2012;543:227–232. doi:10.1016/j.jallcom.2012.05.120
DOI: https://doi.org/10.15826/chimtech.2024.11.4.12
Copyright (c) 2024 Viktor Bykov, Tatiana Kulikova, Evgenii Sterkhov, Ilya Evdokimov
This work is licensed under a Creative Commons Attribution 4.0 International License.
© Website Chimica Techno Acta, 2014–2024
ISSN 2411-1414 (Online)
This journal is licensed under a Creative Commons Attribution 4.0 International