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Title: Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures

In this paper, we summarize recent work on helium (He) interaction with various heterophase boundaries under high temperature irradiation. We categorize the ion-affected material beneath the He-implanted surface into three regions of depth, based on the He/vacancy ratio. The differing defect structures in these three regions lead to the distinct temperature sensitivity of He-induced microstructure evolution. The effect of He bubbles or voids on material mechanical performance is explored. Finally, overall design guidelines for developing materials where He-induced damage can be mitigated in materials are discussed.
Authors:
 [1] ;  [2] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Materials Science and Engineering
Publication Date:
Report Number(s):
LA-UR-17-27218
Journal ID: ISSN 1047-4838; TRN: US1800901
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 69; Journal Issue: 11; Journal ID: ISSN 1047-4838
Publisher:
Springer
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); LANL Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1416292

Li, Nan, Demkowicz, Michael J., and Mara, Nathan A.. Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures. United States: N. p., Web. doi:10.1007/s11837-017-2580-7.
Li, Nan, Demkowicz, Michael J., & Mara, Nathan A.. Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures. United States. doi:10.1007/s11837-017-2580-7.
Li, Nan, Demkowicz, Michael J., and Mara, Nathan A.. 2017. "Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures". United States. doi:10.1007/s11837-017-2580-7. https://www.osti.gov/servlets/purl/1416292.
@article{osti_1416292,
title = {Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures},
author = {Li, Nan and Demkowicz, Michael J. and Mara, Nathan A.},
abstractNote = {In this paper, we summarize recent work on helium (He) interaction with various heterophase boundaries under high temperature irradiation. We categorize the ion-affected material beneath the He-implanted surface into three regions of depth, based on the He/vacancy ratio. The differing defect structures in these three regions lead to the distinct temperature sensitivity of He-induced microstructure evolution. The effect of He bubbles or voids on material mechanical performance is explored. Finally, overall design guidelines for developing materials where He-induced damage can be mitigated in materials are discussed.},
doi = {10.1007/s11837-017-2580-7},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 11,
volume = 69,
place = {United States},
year = {2017},
month = {9}
}