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Title: Mechanical Behavior of Additively Manufactured Uranium-6 wt. pct. Niobium

Abstract

This report describes an effort to process uranium-6 weight% niobium using laser powder bed fusion. The chemistry, crystallography, microstructure and mechanical response resulting from this process are discussed with particular emphasis on the effect of the laser powder bed fusion process on impurities. In an effort to achieve homogenization and uniform mechanical behavior from different builds, as well as to induce a more conventional loading response, we explore post-processing heat treatments on this complex alloy. Elevated temperature heat treatment for recrystallization is evaluated and the effect of recrystallization on mechanical behavior in laser powder bed fusion processed U-6Nb is discussed. Wrought-like mechanical behavior and grain sizes are achieved through post-processing and are reported herein.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1] more »;  [1];  [1];  [1];  [1];  [1];  [1] « less
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1414344
Report Number(s):
LLNL-TR-739064
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Wu, A. S., Wraith, M. W., Burke, S. C., Hamza, A. V., Brown, D. W., Clausen, B., Hsiung, L. L., McKeown, J. T., Lindvall, R. E., Sedillo, E. M., Teslich, N. E., Torres, S. G., Urabe, D. S., Freeman, D. C., Alexander, P. A., Iniguez, M. R., Ryerson, F. J., Ancheta, D. S., Lotscher, J. P., Young, E. W., Evans, C. L., Florando, J. N., Gallegos, G. F., Margraff, M., Hrousis, C. A., and Campbell, G. H.. Mechanical Behavior of Additively Manufactured Uranium-6 wt. pct. Niobium. United States: N. p., 2017. Web. doi:10.2172/1414344.
Wu, A. S., Wraith, M. W., Burke, S. C., Hamza, A. V., Brown, D. W., Clausen, B., Hsiung, L. L., McKeown, J. T., Lindvall, R. E., Sedillo, E. M., Teslich, N. E., Torres, S. G., Urabe, D. S., Freeman, D. C., Alexander, P. A., Iniguez, M. R., Ryerson, F. J., Ancheta, D. S., Lotscher, J. P., Young, E. W., Evans, C. L., Florando, J. N., Gallegos, G. F., Margraff, M., Hrousis, C. A., & Campbell, G. H.. Mechanical Behavior of Additively Manufactured Uranium-6 wt. pct. Niobium. United States. doi:10.2172/1414344.
Wu, A. S., Wraith, M. W., Burke, S. C., Hamza, A. V., Brown, D. W., Clausen, B., Hsiung, L. L., McKeown, J. T., Lindvall, R. E., Sedillo, E. M., Teslich, N. E., Torres, S. G., Urabe, D. S., Freeman, D. C., Alexander, P. A., Iniguez, M. R., Ryerson, F. J., Ancheta, D. S., Lotscher, J. P., Young, E. W., Evans, C. L., Florando, J. N., Gallegos, G. F., Margraff, M., Hrousis, C. A., and Campbell, G. H.. Fri . "Mechanical Behavior of Additively Manufactured Uranium-6 wt. pct. Niobium". United States. doi:10.2172/1414344. https://www.osti.gov/servlets/purl/1414344.
@article{osti_1414344,
title = {Mechanical Behavior of Additively Manufactured Uranium-6 wt. pct. Niobium},
author = {Wu, A. S. and Wraith, M. W. and Burke, S. C. and Hamza, A. V. and Brown, D. W. and Clausen, B. and Hsiung, L. L. and McKeown, J. T. and Lindvall, R. E. and Sedillo, E. M. and Teslich, N. E. and Torres, S. G. and Urabe, D. S. and Freeman, D. C. and Alexander, P. A. and Iniguez, M. R. and Ryerson, F. J. and Ancheta, D. S. and Lotscher, J. P. and Young, E. W. and Evans, C. L. and Florando, J. N. and Gallegos, G. F. and Margraff, M. and Hrousis, C. A. and Campbell, G. H.},
abstractNote = {This report describes an effort to process uranium-6 weight% niobium using laser powder bed fusion. The chemistry, crystallography, microstructure and mechanical response resulting from this process are discussed with particular emphasis on the effect of the laser powder bed fusion process on impurities. In an effort to achieve homogenization and uniform mechanical behavior from different builds, as well as to induce a more conventional loading response, we explore post-processing heat treatments on this complex alloy. Elevated temperature heat treatment for recrystallization is evaluated and the effect of recrystallization on mechanical behavior in laser powder bed fusion processed U-6Nb is discussed. Wrought-like mechanical behavior and grain sizes are achieved through post-processing and are reported herein.},
doi = {10.2172/1414344},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 15 00:00:00 EDT 2017},
month = {Fri Sep 15 00:00:00 EDT 2017}
}

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