Mechanical property and improved oxidation resistance of refractory high entropy alloy fabricated by laser directed energy deposition
Source abstract
Abstract
NbMoTaWZr refractory high-entropy alloy prepared by laser directed energy deposition exhibited excellent mechanical properties both at room and 1200 ℃. Microstructure and phase were systematically investigated. However, poor oxidation resistance remains a critical limitation for application. In this research, we explored the improvement of oxidation resistance through pack cementation Si to facilitate the formation of protective scales. Results revealed that dense SiO 2 external scale and (Si,Zr)O internal layer can effectively restrict the inward diffusion of oxygen. These observations demonstrate the significant role of Si in oxidation process. This study will offer new understanding for broadening applications of refractory high-entropy alloys in high temperature environments.
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 (46)
Show source-provided references
1. Microstructure and mechanical properties of a novel refractory high entropy alloy HfMoScTaZr10.1016/j.ijrmhm.2021.105568 ↗
2. Effect of trace impurity elements on the high-temperature oxidation resistance of a high-purity nickel-based superalloy10.1016/j.corsci.2022.110904 ↗
3. The effect of tensile stress on oxidation behavior of nickel-base single crystal superalloy10.1016/j.corsci.2021.109737 ↗
4. On the orientation-dependent mechanical properties of interstitial solute-strengthened Fe49.5Mn30Co10Cr10C0.5 high entropy alloy produced by directed energy deposition
5. Development and exploration of refractory high entropy alloys-A review10.1557/jmr.2018.153 ↗
6. Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes10.1038/s41586-018-0685-y ↗
7. Mechanical and tribological performance of AlCr0.5NbTaTi4-x(x = 0, 0.5, 1) refractory high-entropy alloys10.1016/j.jmst.2023.02.016 ↗
8. Latest progress on refractory high entropy alloys: composition, fabrication, post processing, performance, simulation and prospect10.1016/j.ijrmhm.2022.105993 ↗
9. Microstructure evolution and high temperature wear resistance of in-situ synthesized carbides reinforced NiCoFeCrSiMo high entropy alloy coatings fabricated by laser cladding10.1016/j.surfcoat.2023.129573 ↗
10. Refractory high-entropy alloys10.1016/j.intermet.2010.05.014 ↗
11. Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys10.1016/j.intermet.2011.01.004 ↗
12. Heterostructured alloys with enhanced strength-ductility synergy through laser-cladding10.1016/j.scriptamat.2022.114732 ↗
13. Influence of alloying elements on mechanical and electronic properties of NbMoTaWX (X = Cr, Zr, V, Hf and Re) refractory high entropy alloys10.1016/j.intermet.2020.106928 ↗
14. Synthesis of WTaMoNbZr refractory high-entropy alloy powder by plasma spheroidization process for additive manufacturing10.1016/j.jallcom.2022.165501 ↗
15. Evolution in microstructure wear corrosion and tribocorrosion behavior of Mo-containing high-entropy alloy coatings fabricated by laser cladding10.1016/j.corsci.2021.109727 ↗
16. Printability disparities in heterogeneous material combinations via laser directed energy deposition: a comparative study10.1088/2631-7990/ad172f ↗
17. Laser-based directed energy deposition (DED-LB) of advanced materials10.1016/j.msea.2022.142967 ↗
18. Effects of Cu/Si on the microstructure and tribological properties of FeCoCrNi high entropy alloy coating by laser cladding
19. Oxidation behavior of the Ti38V15Nb23Hf24 refractory high-entropy alloy at elevated temperatures10.1016/j.corsci.2022.110153 ↗
20. Effect of Ti content on wear and high-temperature oxidation resistances of laser-clad CoCrMoNbTix high-entropy alloy coatings10.1016/j.matlet.2023.134490 ↗
21. Oxidation behavior of a refractory NbCrMo0.5Ta0.5TiZr alloy10.1007/s10853-012-6582-0 ↗
22. High temperature oxidation behaviors of equimolar NbTiZrV and NbTiZrCr refractory complex concentrated alloys (RCCAs)10.1016/j.jallcom.2017.09.164 ↗
23. The determining role of Al addition on tribology properties and oxidation behavior at elevated temperatures of TiZrHfNb refractory high-entropy alloy10.1016/j.matchar.2022.111921 ↗
24. The mechanical and oxidation properties of novel B2-ordered Ti2ZrHf0.5VNb0.5Alx refractory high-entropy alloys10.1016/j.matchar.2021.111287 ↗
25. Effect of Al content on the thermal oxidation behaviour of AlHfMoNbTi high-entropy alloys analysed by in situ environmental TEM10.1016/j.corsci.2021.109711 ↗
26. Formation and oxidation behavior of refractory high-entropy silicide (NbMoTaW)Si2 coating10.1016/j.corsci.2022.110134 ↗
27. Development and oxidation behavior of high entropy silicide (NbMoTaWV)Si2 coatings on NbMoTaWV alloy10.1016/j.jallcom.2022.165384 ↗
28. Fabrication of spherical MoNbTaWZr refractory high-entropy powders by spray granulation combined with plasma spheroidization10.1016/j.jallcom.2022.167542 ↗
29. Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys10.1016/j.jallcom.2020.157997 ↗
30. Impact of fluid flow on the dendrite growth and the formation of new grains in additive manufacturing
31. Effect of Ti additions on mechanical properties of NbMoTaW and VNbMoTaW refractory high entropy alloys10.1016/j.intermet.2017.01.007 ↗
32. Mechanical properties and phase stability of WTaMoNbTi refractory high‑entropy alloy at elevated temperatures
33. Microstructure and mechanical properties of WMoTaNbTi refractory high-entropy alloys fabricated by selective electron beam melting10.1016/j.jmst.2021.07.041 ↗
34. Microstructure and mechanical properties of RexNbMoTaW high-entropy alloys with metal powder
35. Effect of Cr content on microstructure and properties of Mo0.5VNbTiCrx high-entropy alloys10.1016/j.jallcom.2019.153352 ↗
36. Ultra-strong and ductile precipitation-strengthened high entropy alloy with 0.5% Nb addition produced by laser additive manufacturing10.1016/j.jmst.2023.11.053 ↗
37. Discrete twinning dynamics and size-dependent dislocation-to twin transition in body-centred cubic tungsten10.1016/j.jmst.2021.08.010 ↗
38. A high-entropy silicide-(Mo0.2Nb0.2Ta0.2Ti0.2W0.2)Si2
39. High entropy silicides: CALPHAD-guided prediction and thin film fabrication10.1016/j.scriptamat.2021.113914 ↗
40. Understanding the physical metallurgy of the CoCrFeMnNi high-entropy alloy: an atomistic simulation study10.1038/s41524-017-0060-9 ↗
41. High temperature oxidation behavior of CoCrFeNiMo0.2 high-entropy alloy coatings produced by laser cladding
42. Effect of Si content on the microstructure and high temperature oxidation resistance of TiAlCrNiSi high-entropy alloy films synthesized by multi-target magnetron co-sputtering10.1016/j.jallcom.2023.172674 ↗
43. Y-Hf co-doped AlCoCrFeNi2.1 eutectic high-entropy alloy with excellent oxidation and spallation resistance under thermal cycling conditions at 1100 °C and 1200 °C10.1016/j.corsci.2021.109515 ↗
44. Surface hardening of TiZrNbHfTa high entropy alloy via oxidation10.1016/j.corsci.2023.111159 ↗
45. Ultra-high temperature oxidation resistant refractory high entropy alloys fabricated by laser melting deposition: Al concentration regulation and oxidation mechanism10.1016/j.corsci.2023.111537 ↗
46. The role of Si on microstructure and high-temperature oxidation of CoCr2FeNb0.5Ni high-entropy alloy coating10.1016/j.corsci.2021.109417 ↗