Oxidation Behavior of Welded Fe-Based and Ni-Based Alloys in Supercritical CO2

Oleksak, Richard P.; Carney, Casey S.; Teeter, Lucas; Dogan, Omer N.

doi:10.1007/s11085-021-10080-5

Oxidation Behavior of Welded Fe-Based and Ni-Based Alloys in Supercritical CO₂

Journal Article · Sun Aug 08 00:00:00 EDT 2021 · Oxidation of Metals

DOI:https://doi.org/10.1007/s11085-021-10080-5· OSTI ID:1842480

^[1]; ^[1]; Teeter, Lucas ^[1]; ^[1]

National Energy Technology Lab. (NETL), Albany, OR (United States)

Next-generation supercritical CO₂ (sCO₂) power cycles will require different classes of alloy throughout the operational temperatures to optimize tradeoff of creep strength, oxidation performance and cost. This will necessitate joining methods such as welding, which might pose compatibility concerns at the joined interfaces. In this study, similar and dissimilar metal welds were generated from a variety of candidate alloys for sCO₂ systems including ferritic/martensitic steels, austenitic steels, and Ni-based superalloys. Samples were extracted from different regions of the welds and exposed to sCO₂ at 550 °C and 20 MPa for 2500 h, then characterized to understand their behavior in this environment. Unsurprisingly, the local oxidation behavior was largely dictated by the Cr content in the underlying metal. High-Cr austenitic steels and Ni alloys formed slow-growing Cr-rich oxide scales with minimal carburization of the underlying metal, while low-Cr ferritic/martensitic steels formed fast-growing Fe-rich oxide scales with significant carburization. Most welds did not show any unusual oxidation behavior at the interfaces, considering the local Cr content. The one exception was the 347H similar metal weld, where a larger grain size and complex grain structure in the fusion zone led to a significantly higher rate of Fe-rich oxide nodule formation compared to the base metal. This suggests that microstructural changes at joined interfaces can play an important role on the oxidation-limited lifetimes in future sCO₂ systems. The composition changes across the interfaces enabled study of the effect of Fe on the growth rate of Cr-rich oxides and of the origins of the sub-surface recrystallization zone that forms beneath them.

View Accepted Manuscript (DOE)

Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

Grant/Contract Number:: 89243318CFE000003

OSTI ID:: 1842480

Journal Information:: Oxidation of Metals, Journal Name: Oxidation of Metals Journal Issue: 1-2 Vol. 97; ISSN 0030-770X

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

References (24)

Effect of high-temperature supercritical carbon dioxide exposure on the microstructure and tensile properties of diffusion-bonded Alloy 690 Chen, Hongsheng; Kim, Sung Hwan; Jang, Changheui Journal of Materials Science, Vol. 55, Issue 8 https://doi.org/10.1007/s10853-019-04222-z	journal	November 2019
Effects of Silicon and Water Vapour on Corrosion of Fe–20Cr and Fe–20Cr–20Ni Alloys in CO2 at 650 °C Nguyen, Thuan Dinh; Zhang, Jianqiang; Young, David J. Oxidation of Metals, Vol. 87, Issue 3-4 https://doi.org/10.1007/s11085-016-9681-5	journal	December 2016
Resistance of High-Nickel, Heat-Resisting Alloys to Air and to Supercritical CO2 at High Temperatures Olivares, R. I.; Young, D. J.; Nguyen, T. D. Oxidation of Metals, Vol. 90, Issue 1-2 https://doi.org/10.1007/s11085-017-9820-7	journal	January 2018
Structural Evolution of a Ni Alloy Surface During High-Temperature Oxidation Oleksak, Richard P.; Carney, Casey S.; Holcomb, Gordon R. Oxidation of Metals, Vol. 90, Issue 1-2 https://doi.org/10.1007/s11085-017-9821-6	journal	November 2017
Effects of Corrosion in Supercritical CO2 on the Microstructural Evolution in 800H Alloy Adam, Benjamin; Teeter, Lucas; Mahaffey, Jacob Oxidation of Metals, Vol. 90, Issue 3-4 https://doi.org/10.1007/s11085-018-9852-7	journal	May 2018
Effect of Surface Finish on High-Temperature Oxidation of Steels in CO2, Supercritical CO2, and Air Oleksak, Richard P.; Holcomb, Gordon R.; Carney, Casey S. Oxidation of Metals, Vol. 92, Issue 5-6 https://doi.org/10.1007/s11085-019-09938-6	journal	October 2019
Alloy Corrosion by Hot CO2 Gases Young, David J.; Zhang, Jianqiang JOM, Vol. 70, Issue 8 https://doi.org/10.1007/s11837-018-2944-7	journal	May 2018
High-Temperature Oxidation of Commercial Alloys in Supercritical CO2 and Related Power Cycle Environments Oleksak, Richard P.; Tylczak, Joseph H.; Carney, Casey S. JOM, Vol. 70, Issue 8 https://doi.org/10.1007/s11837-018-2952-7	journal	June 2018
Corrosion of a stainless steel and nickel-based alloys in high temperature supercritical carbon dioxide environment Firouzdor, V.; Sridharan, K.; Cao, G. Corrosion Science, Vol. 69 https://doi.org/10.1016/j.corsci.2012.11.041	journal	April 2013
Corrosion and carburization behavior of chromia-forming heat resistant alloys in a high-temperature supercritical-carbon dioxide environment Lee, Ho Jung; Kim, Hyunmyung; Kim, Sung Hwan Corrosion Science, Vol. 99 https://doi.org/10.1016/j.corsci.2015.07.007	journal	October 2015
Corrosion of 9-12Cr ferritic–martensitic steels in high-temperature CO2 Rouillard, F.; Furukawa, T. Corrosion Science, Vol. 105 https://doi.org/10.1016/j.corsci.2016.01.009	journal	April 2016
Effect of sample thickness on the oxidation and carburization kinetics of 9Cr-1Mo steel in high and atmospheric pressure CO2 at 550 °C Nygren, K. E.; Yu, Z.; Rouillard, F. Corrosion Science, Vol. 163 https://doi.org/10.1016/j.corsci.2019.108292	journal	February 2020
High temperature oxidation of steels in CO2 containing impurities Oleksak, Richard P.; Tylczak, Joseph H.; Holcomb, Gordon R. Corrosion Science, Vol. 164 https://doi.org/10.1016/j.corsci.2019.108316	journal	March 2020
On the role of surface deformation in the oxidation of NiCr alloys at 340–600 °C Gheno, Thomas; Desgranges, Clara; Martinelli, Laure Corrosion Science, Vol. 173 https://doi.org/10.1016/j.corsci.2020.108805	journal	August 2020
Corrosion behavior and lifetime prediction of VM12, Sanicro 25 and Inconel 617 in supercritical carbon dioxide at 600 °C Gui, Yong; Liang, Zhiyuan; Shao, Huaishuang Corrosion Science, Vol. 175 https://doi.org/10.1016/j.corsci.2020.108870	journal	October 2020
Carbon depositions within the oxide scale and its effect on the oxidation behavior of low alloy steel in low (0.1 MPa), sub-(5 MPa) and supercritical (10 MPa) CO2 at 550°C Bidabadi, Mohammad Hassan Shirani; Chandra-ambhorn, Somrerk; Rehman, Abdul Corrosion Science, Vol. 177 https://doi.org/10.1016/j.corsci.2020.108950	journal	December 2020
Characterization of Alloy 600 joints exposed to a high-temperature supercritical-carbon dioxide environment Lee, Ho Jung; Kim, Sung Hwan; Jang, Changheui Materials Characterization, Vol. 138 https://doi.org/10.1016/j.matchar.2018.02.025	journal	April 2018
Effect of supercritical CO2 on the performance of 740H fusion welds Brittan, Andrew Meyer; Mahaffey, Jacob; Anderson, Mark Materials Science and Engineering: A, Vol. 742 https://doi.org/10.1016/j.msea.2018.11.029	journal	January 2019
The performance of Haynes 282 and its weld in supercritical CO2 Brittan, Andrew; Mahaffey, Jacob; Anderson, Mark Materials Science and Engineering: A, Vol. 759 https://doi.org/10.1016/j.msea.2019.05.080	journal	June 2019
Characterization of chromia scales formed in supercritical carbon dioxide Pint, B. A.; Unocic, K. A.; Brese, R. G. Materials at High Temperatures, Vol. 35, Issue 1-3 https://doi.org/10.1080/09603409.2017.1389371	journal	October 2017
High-temperature oxidation of transient-liquid phase bonded Ni-based alloys in 1 bar and 250 bar carbon dioxide Carney, Casey S.; Oleksak, Richard P.; Kapoor, Monica Materials at High Temperatures, Vol. 37, Issue 6 https://doi.org/10.1080/09603409.2020.1818046	journal	September 2020
Diffusion of chromium in ferritic and austenitic 9–20 wt-%chromium steels Tőkei, Z.; Hennesen, K.; Viefhaus, H. Materials Science and Technology, Vol. 16, Issue 10 https://doi.org/10.1179/026708300101507055	journal	October 2000
Corrosion of Weldments Davis, J. R. https://doi.org/10.31399/asm.tb.cw.9781627083393	book	December 2006
Microstructure and Tensile Properties of Diffusion Bonded Austenitic Fe-Base Alloys—Before and After Exposure to High Temperature Supercritical-CO2 Kim, Sung Hwan; Cha, Ji-Hwan; Jang, Changheui Metals, Vol. 10, Issue 4 https://doi.org/10.3390/met10040480	journal	April 2020

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