Ion irradiation and examination of Additive friction stir deposited 316 stainless steel

Priyanka Agrawal; Ching-Heng Shiau; Aishani Sharma; Zhihan Hu; Megha Dubey; Yu Lu; Lin Shao; Ramprashad Prabhakaran; Yaqiao Wu; Rajiv S. Mishra

Materials & Design (Feb 2024)

Ion irradiation and examination of Additive friction stir deposited 316 stainless steel

Priyanka Agrawal,
Ching-Heng Shiau,
Aishani Sharma,
Zhihan Hu,
Megha Dubey,
Yu Lu,
Lin Shao,
Ramprashad Prabhakaran,
Yaqiao Wu,
Rajiv S. Mishra

Affiliations

Priyanka Agrawal: Center for Friction Stir Processing, Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA
Ching-Heng Shiau: Micron School of Materials Science and Engineering, Boise State University, Boise 83725, ID, USA; Center for Advanced Energy Studies, Idaho Falls 83401, ID, USA
Aishani Sharma: Center for Friction Stir Processing, Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA
Zhihan Hu: Department of Nuclear Engineering, Texas A&M University, College Station TX, 77843, USA
Megha Dubey: Micron School of Materials Science and Engineering, Boise State University, Boise 83725, ID, USA; Center for Advanced Energy Studies, Idaho Falls 83401, ID, USA
Yu Lu: Micron School of Materials Science and Engineering, Boise State University, Boise 83725, ID, USA; Center for Advanced Energy Studies, Idaho Falls 83401, ID, USA
Lin Shao: Department of Nuclear Engineering, Texas A&M University, College Station TX, 77843, USA
Ramprashad Prabhakaran: Pacific Northwest National Laboratory, Richland WA 99352, USA,
Yaqiao Wu: Micron School of Materials Science and Engineering, Boise State University, Boise 83725, ID, USA; Center for Advanced Energy Studies, Idaho Falls 83401, ID, USA
Rajiv S. Mishra: Center for Friction Stir Processing, Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA; Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA; Corresponding author.

Journal volume & issue: Vol. 238
p. 112730

Abstract

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This study explored solid-state additive friction stir deposition (AFSD) as a modular manufacturing technology, with the aim of enabling a more rapid and streamlined on-site fabrication process for large meter-scale nuclear structural components with fully dense parts. Austenitic 316 stainless steel (SS) is an excellent candidate to demonstrate AFSD, as it is a commonly-used structural material for nuclear applications. The microstructural evolution and concomitant changes in mechanical properties after 5 MeV Fe++ ion irradiation were studied comprehensively via transmission electron microscopy and nanoindentation. AFSD-processed 316 SS led to a fine-grained and ultrafine-grained microstructure that resulted in a simultaneous increase in strength, ductility, toughness, irradiation resistance, and corrosion resistance. The AFSD samples did not exhibit voids even at 100 dpa dose at 600 °C. The enhanced radiation tolerance as compared to conventional SS was reasoned to be due to the high density of grain boundaries that act as irradiation-induced defect sinks.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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