Corrosion performance of He+ ion irradiated 304 L stainless steel made by laser powder bed fusion in simulated PWR water
Journal article, 2022
The corrosion performance of irradiated 304 L processed by laser powder bed fusion (LPBF) in simulated primary water of pressurized water reactor was investigated. The oxide scales formed on He+ irradiated and unirradiated LPBF 304 L were compared between as-built and solution-annealed samples along with a conventionally rolled irradiated counterpart. The irradiation induced corrosion acceleration by forming slightly thicker duplex-layer films with loose the inner oxide layer was observed on the solution-annealed sample due to the fast diffusion paths provided by irradiation defects. A relatively dense film with a thinner thickness and more Cr enrichment in the inner scale revealed a better corrosion resistance in the as-built LPBF 304 L sample, which was attributed to the better irradiation resistance and the unique microstructure of ultrafine crystalline.
Stainless steel
High temperature corrosion
Laser Powder Bed Fusion
Irradiation
Author
Hui Liu
University of Shanghai for Science and Technology
Shiling Min
University of Shanghai for Science and Technology
Menglei Jiang
University of Shanghai for Science and Technology
Siyi Qiu
University of Shanghai for Science and Technology
Wenjun Kuang
Xi'an Jiaotong University
Zhuoer Chen
Chalmers, Industrial and Materials Science, Materials and manufacture
Juan Hou
University of Shanghai for Science and Technology
State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment
Corrosion Science
0010-938X (ISSN)
Vol. 206 110545Subject Categories
Materials Chemistry
Other Materials Engineering
Corrosion Engineering
DOI
10.1016/j.corsci.2022.110545