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Title: X-ray diffraction studies of 145MeV proton-irradiated AlBeMet 162

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1354623
Report Number(s):
BNL-113140-2016-JA
Journal ID: ISSN 2352-1791
DOE Contract Number:
SC00112704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Materials and Energy; Journal Volume: 8
Country of Publication:
United States
Language:
English

Citation Formats

Elbakhshwan, Mohamed, McDonald, Kirk T., Ghose, Sanjit, Zhong, Zhong, and Simos, Nikolaos. X-ray diffraction studies of 145MeV proton-irradiated AlBeMet 162. United States: N. p., 2016. Web. doi:10.1016/j.nme.2016.05.002.
Elbakhshwan, Mohamed, McDonald, Kirk T., Ghose, Sanjit, Zhong, Zhong, & Simos, Nikolaos. X-ray diffraction studies of 145MeV proton-irradiated AlBeMet 162. United States. doi:10.1016/j.nme.2016.05.002.
Elbakhshwan, Mohamed, McDonald, Kirk T., Ghose, Sanjit, Zhong, Zhong, and Simos, Nikolaos. Mon . "X-ray diffraction studies of 145MeV proton-irradiated AlBeMet 162". United States. doi:10.1016/j.nme.2016.05.002.
@article{osti_1354623,
title = {X-ray diffraction studies of 145MeV proton-irradiated AlBeMet 162},
author = {Elbakhshwan, Mohamed and McDonald, Kirk T. and Ghose, Sanjit and Zhong, Zhong and Simos, Nikolaos},
abstractNote = {},
doi = {10.1016/j.nme.2016.05.002},
journal = {Nuclear Materials and Energy},
number = ,
volume = 8,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 2016},
month = {Mon Aug 01 00:00:00 EDT 2016}
}
  • AlBeMet 162 (Materion Co., formerly Brush Wellman) has been irradiated with 145 MeV protons up to 1.2x10 20 cm -2 fluence, with irradiation temperatures in the range of 100-220oC. Macroscopic postirradiation evaluation on the evolution of mechanical and thermal properties was integrated with a comprehensive X-ray- diffraction study using high-energy monochromatic and polychromatic X-ray beams, which offered a microscopic view of the irradiation damage effects on AlBeMet. The study confirmed the stability of the metal-matrix composite, its resistance to proton damage, and the continuing separation of the two distinct phases, fcc aluminum and hcp beryllium, following irradiation. Furthermore, based onmore » the absence of inter-planar distance change during proton irradiation, it was confirmed that the stacking faults and clusters on the Al (111) planes are stable, and thus can migrate from the cascade region and be absorbed at various sinks. XRD analysis of the unirradiated AlBeMet 162 showed clear change in the texture of the fcc phase with orientation especially in the Al (111) reflection which exhibits a “non-perfect” six-fold symmetry, implying lack of isotropy in the composite.« less
  • AlBeMet 162 (Materion Co., formerly Brush Wellman) has been irradiated with 145 MeV protons up to 1.2x10 20 cm -2 fluence, with irradiation temperatures in the range of 100-220oC. Macroscopic postirradiation evaluation on the evolution of mechanical and thermal properties was integrated with a comprehensive X-ray- diffraction study using high-energy monochromatic and polychromatic X-ray beams, which offered a microscopic view of the irradiation damage effects on AlBeMet. The study confirmed the stability of the metal-matrix composite, its resistance to proton damage, and the continuing separation of the two distinct phases, fcc aluminum and hcp beryllium, following irradiation. Furthermore, based onmore » the absence of inter-planar distance change during proton irradiation, it was confirmed that the stacking faults and clusters on the Al (111) planes are stable, and thus can migrate from the cascade region and be absorbed at various sinks. XRD analysis of the unirradiated AlBeMet 162 showed clear change in the texture of the fcc phase with orientation especially in the Al (111) reflection which exhibits a “non-perfect” six-fold symmetry, implying lack of isotropy in the composite.« less
  • The paper of Hickman et al. on irradiated BeO is discussed. The bicrystal model of Hickman et al. for grain boundary failure is treated with emphasis on the junction plane. It is concluded from the treatment that irradiation of BeO to failure will be temperature-dependent to the extent that the unrestrained DELTA c/c is also temperaturedependent, and will be approximately linearly dependent on the average grain size of the matertal. (D.L.C.)