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Title: Establishment of new design criteria for GlidCop ® X-ray absorbers

Here, an engineering research program has been conducted at the Advanced Photon Source (APS) in order to determine the thermomechanical conditions that lead to crack formation in GlidCop ®, a material commonly used to fabricate X-ray absorbers at X-ray synchrotron facilities. This dispersion-strengthened copper alloy is a proprietary material and detailed technical data of interest to the synchrotron community is limited. The results from the research program have allowed new design criteria to be established for GlidCop ® X-ray absorbers based upon the thermomechanically induced fatigue behavior of the material. X-ray power from APS insertion devices was used to expose 30 GlidCop ® samples to 10000 thermal loading cycles each under various beam power conditions, and all of the samples were metallurgically examined for crack presence/geometry. In addition, an independent testing facility was hired to measure temperature-dependent mechanical data and uniaxial mechanical fatigue data for numerous GlidCop ® samples. Data from these studies support finite element analysis (FEA) simulation and parametric models, allowing the development of a thermal fatigue model and the establishment of new design criteria so that the thermomechanically induced fatigue life of X-ray absorbers may be predicted. It is also demonstrated how the thermal fatigue model canmore » be used as a tool to geometrically optimize X-ray absorber designs.« less
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 24; Journal Issue: 2; Journal ID: ISSN 1600-5775
Publisher:
International Union of Crystallography
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GlidCop®; design criteria; front ends; high heat load; photon absorbers; thermal fatigue life; transient non-linear FEA
OSTI Identifier:
1373404

Collins, Jeff T., Nudell, Jeremy, Navrotski, Gary, Liu, Zunping, and Hartog, Patric Den. Establishment of new design criteria for GlidCop® X-ray absorbers. United States: N. p., Web. doi:10.1107/S1600577517001734.
Collins, Jeff T., Nudell, Jeremy, Navrotski, Gary, Liu, Zunping, & Hartog, Patric Den. Establishment of new design criteria for GlidCop® X-ray absorbers. United States. doi:10.1107/S1600577517001734.
Collins, Jeff T., Nudell, Jeremy, Navrotski, Gary, Liu, Zunping, and Hartog, Patric Den. 2017. "Establishment of new design criteria for GlidCop® X-ray absorbers". United States. doi:10.1107/S1600577517001734. https://www.osti.gov/servlets/purl/1373404.
@article{osti_1373404,
title = {Establishment of new design criteria for GlidCop® X-ray absorbers},
author = {Collins, Jeff T. and Nudell, Jeremy and Navrotski, Gary and Liu, Zunping and Hartog, Patric Den},
abstractNote = {Here, an engineering research program has been conducted at the Advanced Photon Source (APS) in order to determine the thermomechanical conditions that lead to crack formation in GlidCop®, a material commonly used to fabricate X-ray absorbers at X-ray synchrotron facilities. This dispersion-strengthened copper alloy is a proprietary material and detailed technical data of interest to the synchrotron community is limited. The results from the research program have allowed new design criteria to be established for GlidCop® X-ray absorbers based upon the thermomechanically induced fatigue behavior of the material. X-ray power from APS insertion devices was used to expose 30 GlidCop® samples to 10000 thermal loading cycles each under various beam power conditions, and all of the samples were metallurgically examined for crack presence/geometry. In addition, an independent testing facility was hired to measure temperature-dependent mechanical data and uniaxial mechanical fatigue data for numerous GlidCop® samples. Data from these studies support finite element analysis (FEA) simulation and parametric models, allowing the development of a thermal fatigue model and the establishment of new design criteria so that the thermomechanically induced fatigue life of X-ray absorbers may be predicted. It is also demonstrated how the thermal fatigue model can be used as a tool to geometrically optimize X-ray absorber designs.},
doi = {10.1107/S1600577517001734},
journal = {Journal of Synchrotron Radiation (Online)},
number = 2,
volume = 24,
place = {United States},
year = {2017},
month = {2}
}