Influence of phase decomposition on mechanical behavior of an equiatomic CoCuFeMnNi high entropy alloy
Source abstract
Abstract
Abstract Phase decomposition is commonly observed experimentally in single-phase high entropy alloys (HEAs). Hence, it is essential for the consideration of HEAs for structural applications to study and understand the nature of phase decomposition in HEAs, particularly the influence it has on mechanical behavior. This paper describes the phase decomposition in the equiatomic CoCuFeMnNi HEA and how the reported secondary phases influence mechanical behavior. Thermomechanical processing, followed by systematic post deformation annealing treatments, revealed the formation of two distinct secondary phases within the equiatomic face-centered cubic (FCC) matrix phase. Low temperature annealing treatments at 600 °C and below led to the nucleation of Fe-Co rich ordered B2 precipitates that contributed precipitation hardening while sufficiently small in size, on the order of 140 nm in diameter. At temperatures
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Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Additive Manufacturing Materials and Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
2. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
3. High-Entropy alloys: a critical review10.1080/21663831.2014.912690 ↗
4. Microstructures and properties of high-entropy alloys10.1016/j.pmatsci.2013.10.001 ↗
5. High-entropy alloys: a critical assessment of their founding principles and future prospects10.1080/09506608.2016.1180020 ↗
6. A critical review of high entropy alloys and related concepts10.1016/j.actamat.2016.08.081 ↗
7. Recent progress in high entropy alloy research10.1007/s11837-017-2484-6 ↗
8. High-Entropy alloys: a current evaluation of founding ideas and core effects and exploring “Nonlinear Alloys,”10.1007/s11837-017-2527-z ↗
9. A fracture-resistant high-entropy alloy for cryogenic applications10.1126/science.1254581 ↗
10. The influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy10.1016/j.actamat.2013.06.018 ↗
11. Size effect, critical resolved shear stress, stacking fault energy, and solid solution strengthening in the CrMnFeCoNi high-entropy alloy10.1038/srep35863 ↗
12. Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures10.1016/j.actamat.2016.04.005 ↗
13. Precipitation in the equiatomic high-entropy alloy CrMnFeCoNi10.1016/j.scriptamat.2015.10.025 ↗
14. Microstructure and mechanical property of as-cast, -homogenized, and -deformed AlxCoCrFeNi (0 ≤ x ≤ 2) high-entropy alloys10.1016/j.jallcom.2009.08.090 ↗
15. Precipitation behavior and its effects on tensile properties of FeCoNiCr high-entropy alloys10.1016/j.intermet.2016.09.005 ↗
16. Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system10.1016/j.actamat.2013.09.037 ↗
17. Ductile CoCrFeNiMox high entropy alloys strengthened by hard intermetallic phases10.1016/j.actamat.2016.06.063 ↗
18. Modifying transformation pathways in high entropy alloys or complex concentrated alloys via thermo-mechanical processing10.1016/j.actamat.2018.05.009 ↗
19. Effect of intermetallic precipitations on the properties of duplex stainless steel10.1016/j.matchar.2006.03.015 ↗
20. Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and Its application to characterization of the main alloying element10.2320/matertrans.46.2817 ↗
21. Deciphering micro-mechanisms of plastic deformation in a novel single phase fcc-based MnFeCoNiCu high entropy alloy using crystallographic texture10.1016/j.msea.2016.01.065 ↗
22. MnFeNiCuPt and MnFeNiCuCo high-entropy alloys designed based on L10 structure in Pettifor map for binary compounds10.1016/j.intermet.2016.12.002 ↗
23. Phase equilibria in equiatomic CoCuFeMnNi high entropy alloy10.1016/j.matchemphys.2017.08.051 ↗
24. Understanding the deformation behavior of CoCuFeMnNi high entropy alloy by investigating mechanical properties of binary ternary and quaternary alloy subsets10.1016/j.matdes.2018.07.046 ↗
25. The reflection of X-rays by crystals10.1098/rspa.1913.0040 ↗
26. Porter · 2009
27. Recovery, recrystallization, grain growth and phase stability of a family of FCC-structured multi-component equiatomic solid solution alloys10.1016/j.intermet.2013.10.024 ↗
28. Humphreys · 2012
29. Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy10.1016/j.actamat.2013.09.042 ↗
30. Effect of vanadium on atomic ordering characteristics and anti-phase boundary energies of B2–FeCo alloys10.1016/j.intermet.2009.12.029 ↗
31. A precipitation-hardened high-entropy alloy with outstanding tensile properties10.1016/j.actamat.2015.08.076 ↗