Proton irradiation and characterization of additively manufactured 304L stainless steels

B. P. Eftink; J. S. Weaver; J. A. Valdez; V. Livescu; D. Chen; Y. Wang; C. Knapp; N. A. Mara; S. A. Maloy; G. T. Gray

doi:10.1016/j.jnucmat.2020.152007

Proton irradiation and characterization of additively manufactured 304L stainless steels

B. P. Eftink
, J. S. Weaver
, J. A. Valdez
, V. Livescu
, D. Chen
, Y. Wang
, C. Knapp
, N. A. Mara
, S. A. Maloy
, G. T. Gray

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Irradiations were performed with 1.5 MeV protons to 0.6 dpa at 40–150 °C on additively manufactured (AM) 304L stainless steel and the changes in microstructure and mechanical behavior after irradiation were compared to wrought 304L stainless steel. All microstructural and hardness results after irradiation suggest the samples evolve toward a similar state, despite significant differences in the unirradiated microstructures and hardness values. A TEM and nanoindentation-based investigation of before and after proton irradiation at 40–150 °C is presented. Results are interpreted in terms of initial dislocation content, dislocation structures, and microstructural and chemical homogeneity.

Original language	English
Journal	Journal of Nuclear Materials
Volume	531
DOIs	https://doi.org/10.1016/j.jnucmat.2020.152007
State	Published - Apr 1 2020

Access to Document

10.1016/j.jnucmat.2020.152007

Cite this

@article{844f08404a3b4a108702b4fc4c813bb9,

title = "Proton irradiation and characterization of additively manufactured 304L stainless steels",

abstract = "Irradiations were performed with 1.5 MeV protons to 0.6 dpa at 40{\textendash}150 °C on additively manufactured (AM) 304L stainless steel and the changes in microstructure and mechanical behavior after irradiation were compared to wrought 304L stainless steel. All microstructural and hardness results after irradiation suggest the samples evolve toward a similar state, despite significant differences in the unirradiated microstructures and hardness values. A TEM and nanoindentation-based investigation of before and after proton irradiation at 40{\textendash}150 °C is presented. Results are interpreted in terms of initial dislocation content, dislocation structures, and microstructural and chemical homogeneity.",

author = "Eftink, \{B. P.\} and Weaver, \{J. S.\} and Valdez, \{J. A.\} and V. Livescu and D. Chen and Y. Wang and C. Knapp and Mara, \{N. A.\} and Maloy, \{S. A.\} and Gray, \{G. T.\}",

year = "2020",

month = apr,

day = "1",

doi = "10.1016/j.jnucmat.2020.152007",

language = "English",

volume = "531",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Proton irradiation and characterization of additively manufactured 304L stainless steels

AU - Eftink, B. P.

AU - Weaver, J. S.

AU - Valdez, J. A.

AU - Livescu, V.

AU - Chen, D.

AU - Wang, Y.

AU - Knapp, C.

AU - Mara, N. A.

AU - Maloy, S. A.

AU - Gray, G. T.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Irradiations were performed with 1.5 MeV protons to 0.6 dpa at 40–150 °C on additively manufactured (AM) 304L stainless steel and the changes in microstructure and mechanical behavior after irradiation were compared to wrought 304L stainless steel. All microstructural and hardness results after irradiation suggest the samples evolve toward a similar state, despite significant differences in the unirradiated microstructures and hardness values. A TEM and nanoindentation-based investigation of before and after proton irradiation at 40–150 °C is presented. Results are interpreted in terms of initial dislocation content, dislocation structures, and microstructural and chemical homogeneity.

AB - Irradiations were performed with 1.5 MeV protons to 0.6 dpa at 40–150 °C on additively manufactured (AM) 304L stainless steel and the changes in microstructure and mechanical behavior after irradiation were compared to wrought 304L stainless steel. All microstructural and hardness results after irradiation suggest the samples evolve toward a similar state, despite significant differences in the unirradiated microstructures and hardness values. A TEM and nanoindentation-based investigation of before and after proton irradiation at 40–150 °C is presented. Results are interpreted in terms of initial dislocation content, dislocation structures, and microstructural and chemical homogeneity.

UR - https://www.scopus.com/pages/publications/85078281841

U2 - 10.1016/j.jnucmat.2020.152007

DO - 10.1016/j.jnucmat.2020.152007

M3 - Article

SN - 0022-3115

VL - 531

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Proton irradiation and characterization of additively manufactured 304L stainless steels

Abstract

Access to Document

Fingerprint

Cite this