journal article·2020-06Open access

Three-dimensional characterization of an oxide scale on ATI 718Plus® superalloy

Adam Kruk, Sebastian Lech, Aleksander Gil, Grzegorz Cempura, Alina Agüero, Agnieszka M. Wusatowska-Sarnek, Aleksandra Czyrska-Filemonowicz

Corrosion Science· Volume 169

Abstract

The presented study was devoted to the characterization of a scale formed on the ATI 718Plus® superalloy. Novel complementary techniques were applied to precisely describe the structure, chemistry, morphology of the scale as well as the spatial distribution of phases formed during oxidation. The study revealed a discontinuous interlayer of the δ-Ni3Nb phase that had developed underneath the protective Cr2O3 scale. Al2O3 particles, which had precipitated predominantly at grain boundaries, and isolated chromia particles were present in the internal oxidation zone. Nanosized γ phase precipitates enriched with Fe and Co were embedded into the scale.
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Research context

OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Nuclear Materials and Properties

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References (28)

Show source-provided references
1. Allvac® 718Plus™, superalloy for the next forty years
2. Role of chemistry in 718-type Alloys - Allvac® 718Plus™ alloy development10.7449/2004/Superalloys_2004_91_99 ↗
3. Three-dimensional imaging and characterization of the oxide scale formed on a polycrystalline nickel-based superalloy10.1016/j.scriptamat.2019.03.027 ↗
4. Grain-boundary precipitation in Allvac 718Plus10.1016/j.actamat.2012.01.042 ↗
5. On the precipitation of delta phase in ALLVAC® 718Plus10.1080/14786435.2013.878052 ↗
6. STEM-EDX and FIB-SEM tomography of Allvac 718Plus superalloy10.1515/amm-2016-0093 ↗
7. Morphology of γ’ and γ" precipitates and thermal stability of inconel 718 type alloys10.1007/BF02649604 ↗
8. ATI718PLUS ® – new nickel based disc alloy and its capability10.1002/9781119075646.ch84 ↗
9. Microstructure of an oxide scale formed on ATI 718Plus superalloy during oxidation at 850 °C characterised using analytical electron microscopy10.3139/146.111675 ↗
10. Hot corrosion behaviour of wire-arc additive manufactured Ni-based superalloy ATI 718Plus®10.1016/j.corsci.2019.07.010 ↗
11. Effect of microstucture and environment on the High-temperature oxidation behavior of alloy 718Plus10.1002/9781118495223.ch74 ↗
12. Effect of environment on the High temperature oxidation behavior of 718 and 718Plus
13. OXIDATION OF SUPERALLOYS IN EXTREME ENVIRONMENTS
14. Mcdevitt · 2013
15. On the crystallography and composition of topologically close-packed phases in ATI 718Plus®10.1016/j.actamat.2017.03.038 ↗
16. Application of analytical electron microscopy and tomographic techniques for metrology and 3D imaging of microstructural elements in Allvac® 718PlusTM
17. Influence of high-temperature exposure on the microstructure of ATI 718Plus superalloy studied by Electron microscopy and tomography techniques
18. Oxidation under pure steam: Cr based protective oxides and coatings10.1016/j.surfcoat.2013.09.016 ↗
19. Nanoscale chemical compositional analysis with an innovative S/TEM-EDX system, microsc
20. Stadelmann · 2020
21. Review of FIB-tomography
22. Growth and adherence of chromia based surface scales on Ni-base alloys in high- and low-pO2 gases10.1016/j.msea.2007.05.035 ↗
23. Steam Oxidation Resistance of Advanced Steels and Ni-Based Alloys at 700 °C for 1000 h10.1007/s11085-017-9818-1 ↗
24. Neural network modelling studies of steam oxidised kinetic behaviour of advanced steels and Ni-based alloys at 800 ° C for 3000 h10.1016/j.corsci.2018.01.013 ↗
25. The mechanism of oxidation of Ni-Cr-Al alloys at 1000°-1200°C10.1016/S0010-938X(71)80044-6 ↗
26. Microstructural observations on the oxidation of γ′-Ni3Al at high oxygen partial pressure10.1016/0956-7151(94)90166-X ↗
27. Growth mechanisms and electrical conductivity of oxide scales on ferritic steels proposed as interconnect materials for SOFC’s10.1002/fuce.200500110 ↗
28. Grain boundary precipitation in Inconel 718 and ATI 718Plus10.1080/02670836.2017.1333222 ↗