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Title: Response of solidification cellular structures in additively manufactured 316 stainless steel to heavy ion irradiation: an in situ study

Abstract

In-core or cladding structural materials exposed to heavy ion irradiation often suffer serious irradiation-induced damages. Introducing defect sinks can effectively mitigate irradiation-induced degradation in materials. Here, we investigated the radiation response of additively manufactured 316 austenitic stainless steel with high-density solidification cellular structures via in situ Kr++ irradiation at 400°C to 5dpa. The study shows that the trapped dislocations along with the cellular walls can serve as effective defect sinks, thus reduce dislocation loop density compared with the conventional coarse-grained counterparts. This study provides a positive step for the potential applications of radiation-resistant, additively manufactured steels in advanced nuclear reactors.

Authors:
 [1];  [1]; ORCiD logo [1];  [1];  [1];  [2];  [2]; ORCiD logo [1]; ORCiD logo [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1524286
Report Number(s):
LLNL-JRNL-766646
Journal ID: ISSN 2166-3831; 955011
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 7; Journal Issue: 7; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Shang, Z., Fan, C., Xue, S., Ding, Jie, Li, Jin, Voisin, T., Wang, Y. M., Wang, H., and Zhang, X. Response of solidification cellular structures in additively manufactured 316 stainless steel to heavy ion irradiation: an in situ study. United States: N. p., 2019. Web. doi:10.1080/21663831.2019.1604442.
Shang, Z., Fan, C., Xue, S., Ding, Jie, Li, Jin, Voisin, T., Wang, Y. M., Wang, H., & Zhang, X. Response of solidification cellular structures in additively manufactured 316 stainless steel to heavy ion irradiation: an in situ study. United States. https://doi.org/10.1080/21663831.2019.1604442
Shang, Z., Fan, C., Xue, S., Ding, Jie, Li, Jin, Voisin, T., Wang, Y. M., Wang, H., and Zhang, X. Wed . "Response of solidification cellular structures in additively manufactured 316 stainless steel to heavy ion irradiation: an in situ study". United States. https://doi.org/10.1080/21663831.2019.1604442. https://www.osti.gov/servlets/purl/1524286.
@article{osti_1524286,
title = {Response of solidification cellular structures in additively manufactured 316 stainless steel to heavy ion irradiation: an in situ study},
author = {Shang, Z. and Fan, C. and Xue, S. and Ding, Jie and Li, Jin and Voisin, T. and Wang, Y. M. and Wang, H. and Zhang, X.},
abstractNote = {In-core or cladding structural materials exposed to heavy ion irradiation often suffer serious irradiation-induced damages. Introducing defect sinks can effectively mitigate irradiation-induced degradation in materials. Here, we investigated the radiation response of additively manufactured 316 austenitic stainless steel with high-density solidification cellular structures via in situ Kr++ irradiation at 400°C to 5dpa. The study shows that the trapped dislocations along with the cellular walls can serve as effective defect sinks, thus reduce dislocation loop density compared with the conventional coarse-grained counterparts. This study provides a positive step for the potential applications of radiation-resistant, additively manufactured steels in advanced nuclear reactors.},
doi = {10.1080/21663831.2019.1604442},
journal = {Materials Research Letters},
number = 7,
volume = 7,
place = {United States},
year = {Wed Apr 17 00:00:00 EDT 2019},
month = {Wed Apr 17 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 21 works
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Figures / Tables:

Figure 1 Figure 1: (a-b) BF and corresponding DF TEM images of the solidification cellular structures in AM 316 SS before irradiation. (c) The size distribution of cells indicates an average cell diameter of ~480nm in the irradiated area. (d) Depth dependent irradiation dose and Kr++ concentration profiles show the radiation conditions.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.