Microstructural refinement and tensile properties of Fe65.7Ni11.7Ti1Mo6.6Co15 HEA undergoing multiple LSP
Source abstract
Abstract
Seeking for the Fe 65.7Ni 11.7Ti 1Mo 6.6Co 15 high entropy alloy (HEA) with well-performed mechanical properties is indispensable for its wide applications. Herein, the HEA was fabricated via vacuum induction melting at 1923 K, and then subject to LSP treatment by one to three coverage layers. The corresponding microstructure features were observed and a systematic work of the strengthening mechanism were revealed. Moreover, the uniaxial tensile testing was performed and the fracture behaviors of the tensile specimens as a function of the coverage layer are also determined. It evidently shows that, the significant LSP-generated grain refinement process attributes to the following two modes: ( i ) interactions of multidirectional dislocation motion subdividing the β phases into refined equiaxed grains, and ( ii ) numerous new formed parallel lath martensite in γ phases divided by vertical DWs resulting in slender lath grains. In addition, the tensile properties and fracture behaviors of the HEA subjected to LSP treatment strongly depend on the coverage layer. With increasing the coverage layer of LSP, both the ultimate tensile strength and the ductility of the material are improved. Thus, the typical cleavage fracture pattern gradually evolves into the brittleness and ductility mixed fracture pattern.
Source: expertdata · Quality: candidate unverified · Source record ↗
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 (50)
Show source-provided references
1. Mechanical properties and deformation mechanisms of a Ni2Co1Fe1V0.5Mo0.2 medium-entropy alloy at elevated temperatures10.1016/j.actamat.2021.116982 ↗
2. Mechanism for superior fatigue performance of warm laser shock peened IN718 superalloy after high-temperature ageing
3. High temperature oxidation and hot corrosion behaviors of Fe65.7Ni11.7Ti1Mo6.6Co15 high entropy alloy
4. Comparison between cryogenic coolants effect on tool wear and surface integrity in finishing turning of Inconel 71810.1016/j.jmatprotec.2020.116780 ↗
5. Stabilizing nanostructures in metals using grain and twin boundary architectures10.1038/natrevmats.2016.19 ↗
6. Effect of pre-deformation degree on tensile properties of high carbon high manganese steel at different strain rates10.1016/j.msea.2021.142146 ↗
7. Enhancement of mechanical properties of a novel single phase Ni1.5FeCrCu0.5 HEA through cold rolling and subsequent annealing10.1016/j.msea.2022.143360 ↗
8. Accelerated exploration of multi-principal element alloys with solid solution phases, accelerated exploration of multi-principal element alloys with solid solution phases10.1038/ncomms7529 ↗
9. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
10. Design and characterization on microstructure evolution and properties of laser-cladding Ni1.5CrFeTi2B0.5Mox high-entropy alloy coatings10.1016/j.surfcoat.2020.126793 ↗
11. Ultrahigh hardness in nanostructured dual-phase high-entropy alloy AlCrFeCoNiNb developed by high- pressure torsion10.1016/j.jallcom.2021.161101 ↗
12. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
13. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
14. Synergistic effect of Ti and Al on L12-phase design in CoCrFeNi-based high entropy alloys10.1016/j.intermet.2019.106476 ↗
15. Effect of Mo and Ti on the microstructure and microhardness in AlCoFeNiMoTi high entropy alloys prepared by mechanical alloying and conventional sintering10.1016/j.apt.2020.02.008 ↗
16. Significant lattice-distortion effect on compressive deformation in Mo-added CoCrFeNi-based high-entropy alloys10.1016/j.msea.2021.142295 ↗
17. The synergistic addition of Al, Ti, Mo and W to strengthen the equimolar CoCrFeNi high-entropy alloy via thermal-mechanical processing10.1016/j.jallcom.2022.163774 ↗
18. Low-density Fe40Mn19Ni15Al15Si10C1 high entropy steel processed by mechanical alloying and spark plasma sintering: Phase evolution, microstructure and mechanical properties10.1016/j.msea.2023.144776 ↗
19. Metastable high-entropy dual-phase alloys overcome the strength–ductility trade-off10.1038/nature17981 ↗
20. High entropy steel processed through mechanical alloying and spark plasma sintering: alloying behaviour, thermal stability and mechanical properties10.1016/j.msea.2022.144029 ↗
21. Phase evolution and mechanical properties of non-equiatomic Fe–Mn–Ni–Cr–Al–Si–C high entropy steel10.1016/j.jallcom.2020.155013 ↗
22. Effect of N+Cr alloying on the microstructures and tensile properties of Hadfield steel10.1016/j.msea.2016.09.106 ↗
23. Effect of stacking fault energy on work hardening behaviors in Fe–Mn–Si–C high manganese steels by varying silicon and carbon contents10.1016/j.matdes.2015.07.072 ↗
24. Microstructural modification and tensile behavior of IF steel processed through surface mechanical attrition treatment10.1007/s11837-020-04400-4 ↗
25. Influence of Surface Nano-structuring on microstructure, corrosion behavior and osteoblast response of commercially pure titanium treated through ultrasonic shot peening10.1007/s11837-021-05012-2 ↗
26. Studies on the surface characteristics of Ti60 alloy induced by turning combined with ball burnishing10.1016/j.jmapro.2022.02.019 ↗
27. Influence of the machine hammer peening technology on the surface near material structure of stainless steel X5CrNi18-1010.1016/j.matpr.2018.08.123 ↗
28. Laser shock processing: a review of the physics and applications10.1007/BF00326477 ↗
29. Effect of LASER shock peening on microstructure, mechanical properties and corrosion behavior of interstitial free steel10.1016/j.surfcoat.2015.09.014 ↗
30. Recent developments and novel applications of laser shock peening: a review
31. Unveiling the origins of work-hardening enhancement and mechanical instability in laser shock peened titanium10.1016/j.actamat.2022.117810 ↗
32. Effect of pre-deformation degree on tensile properties of high carbon high manganese steel at different strain rates10.1016/j.msea.2021.142146 ↗
33. Laser shock peening-induced misfit dislocation at interfaces between HCP and BCC crystals of Ti6Al4V alloy and the corresponding dislocation patterns in two phases10.1016/j.surfcoat.2022.128513 ↗
34. Recent advances on high-entropy alloys for 3D printing10.1002/adma.201903855 ↗
35. Design and characterization on microstructure evolution and properties of laser-cladding Ni1.5CrFeTi2B0.5Mox high-entropy alloy coatings10.1016/j.surfcoat.2020.126793 ↗
36. Microstructure and properties of CoCrFeNiMo0.2 high-entropy alloy enhanced by high-current pulsed electron beam10.1016/j.surfcoat.2021.126911 ↗
37. Tensile properties, strain rate sensitivity, and activation volume of additively manufactured 316L stainless steels10.1016/j.ijplas.2019.05.009 ↗
38. Hosford · 2010
39. Strain rate correspondence of fracture surface features and tensile properties in AISI304 stainless steel under different LSP impact time10.1016/j.surfcoat.2013.01.031 ↗
40. Advanced tensile properties and strain rate sensitivity of titanium matrix composites reinforced with CaTiO3 particles10.1016/j.jallcom.2021.163229 ↗
41. Strengthening CrFeCoNiMn0.75Cu0.25 high entropy alloy via laser shock peening10.1016/j.ijplas.2022.103296 ↗
42. Microstructural response and grain refinement mechanism of commercially pure titanium subjected to multiple laser shock peening impacts10.1016/j.actamat.2017.01.050 ↗
43. Unveiling the origins of work-hardening enhancement and mechanical instability in laser shock peened titanium10.1016/j.actamat.2022.117810 ↗
44. Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper10.1126/science.1200177 ↗
45. A novel through-length gradient structure assisted strength-ductility synergy in hot-rolled tungsten10.1016/j.matdes.2022.110775 ↗
46. Grain refinement of LY2 aluminum alloy induced by ultra-high plastic strain during multiple laser shock processing impacts10.1016/j.actamat.2010.03.026 ↗
47. The effects of shot peening, laser shock peening and ultrasonic nanocrystal surface modification on the fatigue strength of Inconel 71810.1016/j.msea.2021.141029 ↗
48. The influence of combined gradient structure with residual stress on crack-growth behavior in medium carbon steel10.1016/j.engfracmech.2019.01.037 ↗
49. Investigation into the dynamic mechanical properties of selective laser melted Ti-6Al-4V alloy at high strain rate tensile loading
50. Cyclic plastic zone-based notch analysis and damage evolution model for fatigue life prediction of metals10.1016/j.matdes.2020.108639 ↗