Microstructure and mechanical properties of L12-strengthened CoFeMnNiMo0.2Alx high-entropy alloys
Source abstract
Abstract
Developing alloys with excellent strength-ductility combination is urged desirable for advanced structural application. However, it still remains challenging in spite of years` efforts. Face centered cubic (FCC) high-entropy alloys (HEAs) commonly exhibit superb ductility. However, the low strength and hardness would limit the development of the FCC-structured materials. Here, the FCC + L12 + BCC structured CoFeMnNiMo 0.2Alx were designed and prepared. The CoFeMnNiMo 0.2Al 0.5 HEA displays outstanding compressive properties, whose ultra-high compressive strength is 1900 MPa and the fracture strain is 39.6%. The nano-hardness of the CoFeMnNiMo 0.2Al 0.5 HEA is nearly 8 GPa. Moreover, the relationship between phase evolution, mechanical property, strengthening mechanism, and Mo, Al concentration are systematically discussed. These findings will shed light on exploring novel HEA systems with high performance for future usage.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Introducing local chemical ordering to trigger a planar-slip-initiated strain-hardening mechanism in high entropy alloys10.1016/j.actamat.2023.119248 ↗
2. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
3. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
4. Strong and ductile FeNiCoAl-based high-entropy alloys for cryogenic to elevated temperature multifunctional applications10.1016/j.actamat.2022.118449 ↗
5. Entropic stabilization and descriptors of structural transformation in high entropy alloys10.1016/j.actamat.2023.119077 ↗
6. Spinodal decomposition and the pseudo-binary decomposition in high-entropy alloys10.1016/j.actamat.2023.118775 ↗
7. Hierarchical crack buffering triples ductility in eutectic herringbone high-entropy alloys
8. Design and development of CoCrFeNiTa eutectic high entropy alloys10.1016/j.jmrt.2020.12.042 ↗
9. Microstructures and mechanical properties of multiprincipal component CoCrFeNiTix alloys10.1016/j.msea.2012.06.075 ↗
10. Additive manufacturing of CoCrFeNiMo eutectic high entropy alloy: microstructure and mechanical properties10.1016/j.jallcom.2022.165239 ↗
11. Optimizing the microstructure and mechanical performance of Fe-Ni-Cr-Al high entropy alloys via Ti addition10.1016/j.jallcom.2023.169149 ↗
12. A new strategy of tailoring strength and ductility of CoCrFeNi based high-entropy alloy10.1016/j.msea.2020.138940 ↗
13. A precipitation-hardened high-entropy alloy with outstanding tensile properties10.1016/j.actamat.2015.08.076 ↗
14. Optimising the Al and Ti compositional window for the design of γ’ (L12)-strengthened Al-Co-Cr-Fe-Ni-Ti high entropy alloys10.1016/j.msea.2022.142620 ↗
15. Effects of Mo and Nb on the microstructure and high temperature oxidation behaviors of CoCrFeNi-based high entropy alloys10.1016/j.jmrt.2023.10.058 ↗
16. Solidification microstructures of the ingots obtained by arc melting and cold crucible levitation melting in TiNbTaZr medium-entropy alloy and TiNbTaZrX (X = V, Mo, W) high-entropy alloys10.3390/e21050483 ↗
17. Refractory alloying additions on the thermal stability and mechanical properties of high-entropy alloys10.1016/j.msea.2020.140020 ↗
18. X-ray photoelectron spectroscopy and electrochemical investigation of the passive behavior of high-entropy FeCoCrNiMox alloys in sulfuric acid10.1016/j.apsusc.2019.143903 ↗
19. Effect of Ti on microstructures and mechanical properties of high entropy alloys based on CoFeMnNi system10.1016/j.msea.2018.09.050 ↗
20. Tailoring magnetic behavior of CoFeMnNix (x = Al, Cr, Ga, and Sn) high entropy alloys by metal doping10.1016/j.actamat.2017.03.013 ↗
21. Microstructures and mechanical properties of Co2MoxNi2VWx eutectic high entropy alloys10.1016/j.matdes.2016.07.113 ↗
22. Enhanced mechanical properties and in vitro corrosion behavior of amorphous and devitrified Ti40Zr10Cu38Pd12 metallic glasses10.1016/j.jmbbm.2011.05.028 ↗
23. Core-shell-like structure in CoCrCuTiV high-entropy alloy and its effect on compressive property10.1016/j.jallcom.2022.166246 ↗
24. Effect of iron content on the structure and mechanical properties of Al25Ti25Ni25Cu25 and (AlTi)60-xNi20Cu20Fex (x = 15, 20) high-entropy alloys10.1016/j.apsusc.2015.07.207 ↗
25. Microstructure characteristics and mechanical properties of Al0.25CrFeNi1.75Cux high-entropy alloys10.1016/j.msea.2023.144865 ↗
26. Effects of aluminum on microstructure and compressive properties of Al-Cr-Fe-Ni eutectic multi-component alloys10.1016/j.msea.2016.11.019 ↗
27. Microstructure and properties of Al0.5NbTi3VxZr2 refractory high entropy alloys combined with high strength and ductility10.1016/j.jmrt.2023.03.103 ↗
28. Manufacturing of Ti-Nb-Cr-V-Ni high entropy alloy using directed energy deposition and evaluation of materials properties10.1016/j.jmrt.2023.02.168 ↗
29. Microstructure and mechanical properties of refractory MoNbHfZrTi high-entropy alloy10.1016/j.matdes.2015.05.019 ↗
30. Precipitation behavior during hot deformation of powder metallurgy Ti-Nb-Ta-Zr-Al high entropy alloys10.1016/j.intermet.2018.06.007 ↗
31. On the significance of the H/E ratio in wear control: a nanocomposite coating approach to optimised tribological behavior10.1016/S0043-1648(00)00488-9 ↗
32. The structure and mechanical and tribological properties of TiBCN nanocomposite coatings10.1016/j.actamat.2009.10.063 ↗
33. Mechanical and tribological properties of amorphous carbon films deposited on implanted steel substrates10.1016/j.tsf.2003.12.073 ↗
34. Mechanical and corrosion resistant properties of T-Nb-Si-N nanocomposite films prepared by a double glow discharge plasma technique10.1016/j.ceramint.2014.01.079 ↗
35. Effect of nitriding on microstructure and wear behavior of HVOF sprayed AlxCoCrFeNi (x = 0.4, 0.7, 1.0) high-entropy alloy coatings10.1016/j.intermet.2022.107709 ↗
36. The effect of Al content on microstructures and comprehensive properties in AlxCoCrCuFeNi high entropy alloys10.1016/j.vacuum.2018.12.009 ↗
37. Investigation on microstructure and properties of AlxCoCrFeMnNi high entropy alloys by ultrasonic impact treatment10.1016/j.jallcom.2019.152626 ↗
38. Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system10.1016/j.actamat.2013.09.037 ↗
39. The characteristics of serration in Al0.5CoCrFeNi high entropy alloy10.1016/j.msea.2017.05.075 ↗
40. Structure and high temperature mechanical properties of novel non-equiatomic Fe-(Co, Mn)-Cr-Ni-Al-(Ti) high entropy alloy10.1016/j.intermet.2018.09.010 ↗
41. Effect of carbon on microstructure and mechanical properties of FeMnNiCrAl high entropy alloy10.1016/j.matchar.2023.113020 ↗
42. Substitutional solution hardening10.1016/0001-6160(63)90213-X ↗
43. The effect of solid solution W additions on the mechanical properties of nanocrystalline Ni10.1016/S1359-6454(02)00427-5 ↗
44. Creep resistance of CMSX-3 nickel base superalloy single crystals10.1016/0956-7151(92)90195-K ↗
45. The microstructure and mechanical properties of novel Al-Cr-Fe-Mn-Ni high-entropy alloys with trimodal distributions of coherent B2 precipitates10.1016/j.msea.2019.04.104 ↗
46. Hosford · 2005
47. The strength of a precipitation hardened AlZnMg alloy10.1016/0001-6160(78)90127-X ↗
48. On the critical resolved shear stress from misfitting particles10.1016/0036-9748(78)90194-1 ↗
49. On the critical resolved shear stress of solid solutions containing coherent precipitates10.1002/pssb.19660160234 ↗
50. Argon · 2007