A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic

Popovic, M. P.; Chen, K.; Shen, H.; Stan, C. V.; Olmsted, D. L.; Tamura, N.; Asta, M.; Abad, M. D.; Hosemann, P.

doi:10.1016/j.actamat.2018.03.041

Title: A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic

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Abstract

At elevated temperatures, heavy liquid metals and their alloys are known to create a highly corrosive environment that causes irreversible degradation of most iron-based materials. In this paper, it has been found that an appropriate concentration of oxygen in the liquid alloy can significantly reduce this issue by creating a passivating oxide scale that controls diffusion, especially if Al is present in Fe-based materials (by Al-oxide formation). However, the increase of the temperature and of oxygen content in liquid phase leads to the increase of oxygen diffusion into bulk, and to promotion of the internal Al oxidation. This can cause a strain in bulk near the oxide layer, due either to mismatch between the thermal expansion coefficients of the oxides and bulk material, or to misfit of the crystal lattices (bulk vs. oxides). This work investigates the strain induced into proximal bulk of a Fe-Cr-Al alloy by oxide layers formation in liquid lead-bismuth eutectic utilizing synchrotron X-ray Laue microdiffraction. Finally, it is found that internal oxidation is the most likely cause for the strain in the metal rather than thermal expansion mismatch as a two-layer problem.

Authors:

Popovic, M. P. ^[1]; Chen, K. ^[2]; Shen, H. ^[3]; Stan, C. V. ^[4]; Olmsted, D. L. ^[5]; Tamura, N. ^[4]; Asta, M. ^[5]; Abad, M. D. ^[6]; Hosemann, P. ^[1]

Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
Xi'an Jiaotong Univ. (China). Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano). State Key Lab. for Mechanical Behavior of Materials
Xi'an Jiaotong Univ. (China). Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano). State Key Lab. for Mechanical Behavior of Materials; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering
Ramon Llull Univ., Barcelona (Spain). Chemical Inst. of Sarria. School of Engineering

Publication Date:: Thu Mar 29 00:00:00 EDT 2018

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Xi'an Jiaotong Univ. (China)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China; National Basic Research Program of China

OSTI Identifier:: 1439245

Alternate Identifier(s):: OSTI ID: 1548511

Grant/Contract Number:: AC02-05CH11231; EE0005941; 51671154; 51405507; 2016YFB0700404; 2015CB057400; 20171907

Resource Type:: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 151; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Laue X-ray microdiffraction; strain; oxidation; thermal constriction; FeCrAl alloy

Citation Formats


                    Popovic, M. P., Chen, K., Shen, H., Stan, C. V., Olmsted, D. L., Tamura, N., Asta, M., Abad, M. D., and Hosemann, P. A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic.  United States: N. p., 2018. 
Web.  doi:10.1016/j.actamat.2018.03.041.

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                    Popovic, M. P., Chen, K., Shen, H., Stan, C. V., Olmsted, D. L., Tamura, N., Asta, M., Abad, M. D., & Hosemann, P. A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic.  United States.  https://doi.org/10.1016/j.actamat.2018.03.041

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                    Popovic, M. P., Chen, K., Shen, H., Stan, C. V., Olmsted, D. L., Tamura, N., Asta, M., Abad, M. D., and Hosemann, P. Thu .  
"A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic".  United States.  https://doi.org/10.1016/j.actamat.2018.03.041.  https://www.osti.gov/servlets/purl/1439245.

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@article{osti_1439245,

  title        = {A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic},

  author       = {Popovic, M. P. and Chen, K. and Shen, H. and Stan, C. V. and Olmsted, D. L. and Tamura, N. and Asta, M. and Abad, M. D. and Hosemann, P.},

  abstractNote = {At elevated temperatures, heavy liquid metals and their alloys are known to create a highly corrosive environment that causes irreversible degradation of most iron-based materials. In this paper, it has been found that an appropriate concentration of oxygen in the liquid alloy can significantly reduce this issue by creating a passivating oxide scale that controls diffusion, especially if Al is present in Fe-based materials (by Al-oxide formation). However, the increase of the temperature and of oxygen content in liquid phase leads to the increase of oxygen diffusion into bulk, and to promotion of the internal Al oxidation. This can cause a strain in bulk near the oxide layer, due either to mismatch between the thermal expansion coefficients of the oxides and bulk material, or to misfit of the crystal lattices (bulk vs. oxides). This work investigates the strain induced into proximal bulk of a Fe-Cr-Al alloy by oxide layers formation in liquid lead-bismuth eutectic utilizing synchrotron X-ray Laue microdiffraction. Finally, it is found that internal oxidation is the most likely cause for the strain in the metal rather than thermal expansion mismatch as a two-layer problem.},

  doi          = {10.1016/j.actamat.2018.03.041},

  journal      = {Acta Materialia},

  number       = ,

  volume       = 151,

  place        = {United States},

  year         = {Thu Mar 29 00:00:00 EDT 2018},

  month        = {Thu Mar 29 00:00:00 EDT 2018}

}

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