A novel nitridation- and pesting-resistant Cr-Si-Mo alloy
Source abstract
Abstract
Cr-13.5Si-32.2Mo (at%) solidifies as metastable σ-phase with a dendritic microstructure during arc melting. Heat treatment leads to a decomposition into a fine-lamellar microstructure of (Cr,Mo) ss and (Cr,Mo) 3Si. A protective Cr 2O 3 layer with low growth rates was formed upon cyclic oxidation at 800, 1100 and 1200 °C for up to 100 h. In addition to the Cr 2O 3 layer, the formation of an internal silicon oxide layer is found for 1200 °C. Oxide scales show parabolic growth rates at 1100 and 1200 °C. Up to 100 h, the oxidation occurred remarkably free of nitridation, spallation or pesting.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · High-Temperature Coating Behaviors · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
Show source-provided references
1. Mo-silicide alloys for high-temperature structural applications10.1520/MPC20200183 ↗
2. Constitution, oxidation and creep of eutectic and eutectoid Mo-Si-Ti alloys10.1016/j.intermet.2018.10.028 ↗
3. On the chemical and microstructural requirements for the pesting-resistance of Mo–Si–Ti alloys10.1016/j.jmrt.2020.06.002 ↗
4. Characterisation of the oxidation and creep behaviour of novel Mo-Si-Ti alloys10.1016/j.actamat.2019.11.045 ↗
5. Oxidation of commercial purity titanium10.1007/BF00659186 ↗
6. Oxidation behavior of gamma alloys designed for high temperature applications10.1016/j.intermet.2004.12.007 ↗
7. High temperature oxidation behavior and research status of modifications on improving high temperature oxidation resistance of titanium alloys and titanium aluminides: A review10.1016/j.jallcom.2016.06.212 ↗
8. X-ray analysis of chromium-molybdenum and chromium-tungsten alloys10.1021/ac60002a006 ↗
9. Rapid assessment of solid solution hardening via atomic size misfit parameter in refractory concentrated alloys10.1016/j.jallcom.2021.161320 ↗
10. Der Aufbau einiger Silizidsysteme von Übergangsmetallen10.1007/BF00900790 ↗
11. Challenges in developing oxidation-resistant chromium-based alloys for applications above 900°C10.1007/s11837-016-2079-7 ↗
12. The hotter the engine the better10.1126/science.1179327 ↗
13. Kinetics of the oxidation of chromium10.1149/1.2428576 ↗
14. Oxidation and nitridation behavior of Cr–Si alloys in air at 1473 K10.1007/s11085-015-9544-5 ↗
15. A preliminary study of the oxidation and vapor pressure of chromium10.1149/1.2779609 ↗
16. Improving the oxidation resistance of Cr-Si-based alloys by ternary alloying10.1016/j.corsci.2019.108376 ↗
17. On the oxidation and nitridation of chromium at 1300 °C10.1007/s11085-010-9198-2 ↗
18. Directional solidification and microstructures of near-eutectic Cr–Cr3Si alloys10.1016/S1359-6454(03)00447-6 ↗
19. Microstructure and oxidation behaviour of chromium–molybdenum silicides10.1016/S0921-5093(97)00678-3 ↗
20. Improvement of the oxidation-proof property and the scale structure of Mo3Si intermetallic alloy through the addition of chromium and aluminum elements10.1016/j.intermet.2006.01.059 ↗
21. An evaluation of the properties of Cr3Si alloyed with Mo10.1016/0921-5093(95)09767-8 ↗
22. Eine σ-Phase im System Chrom-Molybdän-Silicium10.1007/BF00911301 ↗
23. Effect of Zr addition on the high-temperature oxidation behaviour of Mo–Si–B alloys10.1007/s11085-009-9175-9 ↗
24. Creep resistance and oxidation behavior of novel Mo-Si-B-Ti alloys10.1007/s11837-015-1560-z ↗
25. Effect of oxide grain structure on the high-temperature oxidation of Cr10.1007/BF00611694 ↗
26. NIH Image to ImageJ: 25 years of image analysis10.1038/nmeth.2089 ↗
27. An experimental investigation of extrapolation methods in the derivation of accurate unit-cell dimensions of crystals10.1088/0959-5309/57/3/302 ↗
28. The creep and oxidation behaviour of pesting-resistant (Mo,Ti)5Si3-containing eutectic-eutectoid Mo-Si-Ti alloys10.3390/met11010169 ↗
29. The influence of silicon on the strength and fracture toughness of molybdenum10.1016/j.msea.2006.07.153 ↗
30. The constitution of the chromium-niobium-silicon system10.1016/0022-5088(61)90041-8 ↗
31. 2010
32. 2012
33. 1997
34. Stoichiometry and mechanical properties of Mo3Si10.1016/S0966-9795(00)00058-3 ↗
35. Microstructural and chemical constitution of the oxide scale formed on a pesting-resistant Mo-Si-Ti alloy10.1016/j.corsci.2020.109081 ↗
36. Oxidation or nitridation behavior of pure chromium and chromium alloys containing 10 mass%Ni or Fe in atmospheric heating10.2320/matertrans.47.2540 ↗
37. A thermodynamic assessment of the Cr–Mo system using CE-CVM10.1016/j.calphad.2013.10.003 ↗
38. The Cr−Mo (chromium-molybdenum) system
39. Kinetics of high temperature oxidation and chromia volatilization for a binary Ni–Cr alloy10.1007/s11085-005-6562-8 ↗
40. Intermetallic reinforced Cr alloys for high-temperature use10.1179/mht.1999.018 ↗
41. Water vapor and oxygen/sulfur-impurity effects on oxidation and nitridation in single- and two-phase Cr–Nb alloys10.1023/A:1020154620928 ↗
42. Oxidation behavior of Cr 2 N, CrNbN, and CrTaN phase mixtures formed on nitrided Cr and laves-reinforced Cr alloys10.1023/B:OXID.0000032330.95411.ec ↗
43. Discontinuities in oxidation kinetics: a new model and its application to Cr–Si-base alloys10.1007/s11085-021-10029-8 ↗
44. Tensile creep properties of Cr-Si alloys at 980 °C in air—influence of Ge and Mo addition10.3390/met11071072 ↗
45. Nitrogen transport through thermally grown chromia scales10.1016/j.corsci.2018.10.007 ↗
46. Ulrich · 2020
47. Über Anlauffarben von Metallen10.1002/zaac.19201110107 ↗
48. Oxidation of copper-nickel alloys at high temperatures10.1021/ie50184a013 ↗
49. Oxidation resistance and mechanical properties of Laves phase reinforced Cr in-situ composites10.1016/S0966-9795(00)00046-7 ↗