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Title: Manufacturing and characterization of Ni-free N-containing ODS austenitic alloys

Abstract

Ni-free N-containing oxide dispersion strengthened (ODS) austenitic alloys were manufactured by mechanical alloying (MA) followed by spark plasma sintering (SPS). The phase evolutions during milling under a nitrogen atmosphere and after sintering were studied by X-ray diffraction (XRD). Transmission electron microcopy (TEM) and contrast variation analysis (ACV), including small-angle neutron scattering (SANS) and ultra-small X-ray scattering (USAXS), revealed the existence of nanoparticles with a diameter of 3-51 nm for the samples sintered at 950 ºC. Sintering at 1000 ºC for 5 and 15 min caused slight growth and a significant coarsening of the nanoparticles, up to 70 nm and 128 nm, respectively. The ACV analysis indicated the existence of two populations of Y2O3, ε-martensite and MnO. The dispersive X-ray spectrometry (EDS) confirmed two kinds of nanoparticles, Y2O3 and MnO. The material was characterized by superior micro-hardness, of above 500 HV0.1.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [6];  [2];  [5];  [2];  [6]
  1. National Inst. for Materials Science (NIMS), Tsukuba (Japan); Warsaw Univ. of Technology (WUT), Warsaw (Poland)
  2. National Inst. for Materials Science (NIMS), Tsukuba (Japan)
  3. Hokkaido Univ., Sapporo (Japan). Faculty of Engineering
  4. Argonne National Lab. (ANL), Argonne, IL (United States). X-Ray Science Division
  5. Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai-mura, Naka-gun (Japan)
  6. Warsaw Univ. of Technology (WUT), Warsaw (Poland)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; Warsaw University of Technology (Politechnika Warszawska)
OSTI Identifier:
1420074
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 501; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Mechanical alloying; Nanoparticle; ODS austenitic steel; Small-angle neutron scattering (SANS); Spark plasma sintering (SPS); contrast variation analysis

Citation Formats

Kowalska-Mori, A., Mamiya, H., Ohnuma, M., Ilavsky, Jan, Ohishi, K., Wozniak, J., Olszyna, A., Watanabe, N., Suzuki, J., Kitazawa, H., and Lewandowska, M. Manufacturing and characterization of Ni-free N-containing ODS austenitic alloys. United States: N. p., 2018. Web. doi:10.1016/j.jnucmat.2018.01.025.
Kowalska-Mori, A., Mamiya, H., Ohnuma, M., Ilavsky, Jan, Ohishi, K., Wozniak, J., Olszyna, A., Watanabe, N., Suzuki, J., Kitazawa, H., & Lewandowska, M. Manufacturing and characterization of Ni-free N-containing ODS austenitic alloys. United States. doi:10.1016/j.jnucmat.2018.01.025.
Kowalska-Mori, A., Mamiya, H., Ohnuma, M., Ilavsky, Jan, Ohishi, K., Wozniak, J., Olszyna, A., Watanabe, N., Suzuki, J., Kitazawa, H., and Lewandowska, M. Wed . "Manufacturing and characterization of Ni-free N-containing ODS austenitic alloys". United States. doi:10.1016/j.jnucmat.2018.01.025.
@article{osti_1420074,
title = {Manufacturing and characterization of Ni-free N-containing ODS austenitic alloys},
author = {Kowalska-Mori, A. and Mamiya, H. and Ohnuma, M. and Ilavsky, Jan and Ohishi, K. and Wozniak, J. and Olszyna, A. and Watanabe, N. and Suzuki, J. and Kitazawa, H. and Lewandowska, M.},
abstractNote = {Ni-free N-containing oxide dispersion strengthened (ODS) austenitic alloys were manufactured by mechanical alloying (MA) followed by spark plasma sintering (SPS). The phase evolutions during milling under a nitrogen atmosphere and after sintering were studied by X-ray diffraction (XRD). Transmission electron microcopy (TEM) and contrast variation analysis (ACV), including small-angle neutron scattering (SANS) and ultra-small X-ray scattering (USAXS), revealed the existence of nanoparticles with a diameter of 3-51 nm for the samples sintered at 950 ºC. Sintering at 1000 ºC for 5 and 15 min caused slight growth and a significant coarsening of the nanoparticles, up to 70 nm and 128 nm, respectively. The ACV analysis indicated the existence of two populations of Y2O3, ε-martensite and MnO. The dispersive X-ray spectrometry (EDS) confirmed two kinds of nanoparticles, Y2O3 and MnO. The material was characterized by superior micro-hardness, of above 500 HV0.1.},
doi = {10.1016/j.jnucmat.2018.01.025},
journal = {Journal of Nuclear Materials},
number = ,
volume = 501,
place = {United States},
year = {Wed Jan 17 00:00:00 EST 2018},
month = {Wed Jan 17 00:00:00 EST 2018}
}

Journal Article:
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