Improvement of “pest” oxidation resistance of Nb-Mo-W-Zr solid- solution alloy at 800 °C by gas nitridation
Source abstract
Abstract
Abstract Nitride layer was prepared on an Nb-5W-2Mo-1Zr by gas nitridation technique. The nitride layer was composed of an outer layer of (Nb, Me)4N3 and (Nb, Me)2N nitrides and an inner lamellar eutectoid-like colony (LEC) interface consisting of (Nb, Me)2N and NbSS phases. The nitrided alloy showed parabolic oxidation kinetics curve with better oxidation resistance than that of the bare alloy when oxidized at 800°C for 100 h. The mechanisms for the nitride layer to suppress the “pest” and spallation of (Nb,W)xOy oxide layer were discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Metal and Thin Film Mechanics · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. A review of refractory metal alloys and mechanically alloyed-oxide dispersion strengthened steels for space nuclear power systems10.1016/j.jnucmat.2004.10.118 ↗
2. Mechanistic origin of high strength in refractory BCC high entropy alloys up to 1900K10.1016/j.actamat.2019.10.015 ↗
3. Oxidation behavior of the B-modified silicide coating on Nb-Si based alloy at intermediate temperatures10.1016/j.corsci.2017.12.016 ↗
4. The development of Nb-based advanced intermetallic alloys for structural applications10.1007/BF03221360 ↗
5. The hotter the engine, the better10.1126/science.1179327 ↗
6. In situ observations of the pest oxidation process of NbSi2 at 1023K10.1016/j.scriptamat.2005.05.023 ↗
7. High-temperature refractory metal-intermetallic composites10.1007/BF03221361 ↗
8. Oxidation response of three Nb-Cr-Mo-Si-B alloys in air10.1016/j.corsci.2015.06.026 ↗
9. Formation and oxidation behavior of Ce-modified MoSi2-NbSi2 coating on niobium alloy10.1016/j.corsci.2020.108751 ↗
10. Effect of Al, Cr and Ta additions on the oxidation behaviour of Nb–Ti–Si in situ composites at 800°C10.1016/j.msea.2005.10.017 ↗
11. Cyclic oxidation behavior of Fe-Cr modified slurry silicide coated Nb-18.7Si alloyed with Ti and Zr10.1016/j.corsci.2018.12.027 ↗
12. Microstructural evolution and mechanical behaviors of an Nb-16Si-22Ti-2Al-2Hf alloy with 2 and 17 at. Pct Cr additions at room and/or high temperatures10.1007/s11661-014-2423-x ↗
13. Microstructure, Mechanical Properties and Oxidation Resistance of Nb-22Ti-14Si-2Hf-2Al-xCr Alloys10.1016/S1000-9361(11)60390-7 ↗
14. Microstructural evolution and oxidation behaviour of Mo-Si-B coatings on an Nb-16Si-22Ti-7Cr-2Al-2Hf alloy at 1250 °C prepared by spark plasma sintering10.1016/j.surfcoat.2018.08.027 ↗
15. Oxidation behaviour of a Ge-modified silicide coating on an Nb-Si based alloy in the moderate temperature range10.1016/j.corsci.2019.108249 ↗
16. Aluminide coating on niobium by arc surface alloying10.2320/matertrans.44.861 ↗
17. FeAl and NbAl3 Intermetallic-HVOF coatings: structure and properties10.1007/s11666-009-9339-9 ↗
18. Microstructure and oxidation behavior of plasma sprayed WSi2-mullite-MoSi2 coating on niobium alloy at 1500 degrees C10.1016/j.surfcoat.2020.126210 ↗
19. A review of very-high-temperature Nb-silicide-based composites10.1007/s11661-003-0269-8 ↗
20. "PEST" degradation in beryllides, silicides, aluminides, and related compounds10.1016/0022-3115(64)90142-4 ↗
21. Microstructure and dry sliding wear properties of laser clad Mo2Ni3Si/NiSi metal silicide composite coatings10.1016/S0925-8388(03)00192-0 ↗
22. Several plasma diffusion processes for improving wear properties of Ti6Al4V alloy10.1016/j.wear.2009.04.005 ↗
23. Metastable phase formation and enhanced diffusion in f.c.c. Alloys under high dose, high flux nitrogen implantation at high and low ion energies10.1016/S0257-8972(94)80003-0 ↗
24. Nitrogen interstitial diffusion induced decomposition in AISI 304L austenitic stainless steel10.1016/j.actamat.2012.04.014 ↗
25. Corrosion resistance properties of glow-discharge nitrided AISI 316L austenitic stainless steel in NaCl solutions10.1016/j.corsci.2005.06.006 ↗
26. Influence of nitrogen implantation on the high temperature oxidation of titanium-base alloys10.1016/j.surfcoat.2006.08.106 ↗
27. Influence of nitridation on the oxidation of a 304 steel at 800 °C10.1016/j.corsci.2004.01.018 ↗
28. Influence of nitriding on the oxidation behaviour of titanium alloys at 700 °C10.1016/j.surfcoat.2004.04.066 ↗
29. Microstructure, wear and high temperature oxidation resistance of nitrided TiAl based alloys10.1016/S0921-5093(01)01515-5 ↗
30. Growth of ordered lamellar precipitates during nitridation of N-10 at.% Ti at 1300°C10.1016/S0925-8388(98)00891-3 ↗
31. Evaluation of the resistance to oxidation of niobium treated by high temperature nitrogen plasma based ion implantation10.1016/j.surfcoat.2016.10.012 ↗
32. Effects of W content on high temperature oxidation resistance and room temperature mechanical properties of hot-pressing Nb-XW alloys10.1016/j.msea.2012.06.053 ↗
33. N (nitrogen) binary alloy phase diagrams