@article{600ccdb8fc804a5b817bb48541b2bb45,
title = "Influence of laser shock peening on irradiation defects in austenitic stainless steels",
abstract = "The laser shock peening process can generate a dislocation network, stacking faults, and deformation twins in the near surface of austenitic stainless steels by the interaction of laser-driven shock waves with metals. In-situ transmission electron microscopy (TEM) irradiation studies suggest that these dislocations and incoherent twin boundaries can serve as effective sinks for the annihilation of irradiation defects. As a result, the irradiation resistance is improved as the density of irradiation defects in laser-peened stainless steels is much lower than that in untreated steels. After heating to 300 °C, a portion of the dislocations and stacking faults are annealed out while the deformation twins remain stable, which still provides improved irradiation resistance. These findings have important implications on the role of laser shock peening on the lifetime extension of austenitic stainless steel components in nuclear reactor environments.",
keywords = "In-situ TEM, Irradiation, Laser shock peening, Microstructure, Stainless steel",
author = "Qiaofeng Lu and Qing Su and Fei Wang and Chenfei Zhang and Yongfeng Lu and Michael Nastasi and Bai Cui",
note = "Funding Information: This work was supported by the Nebraska Public Power District through the Nebraska Center for Energy Sciences Research, Research Council Faculty Seed Grant from the University of Nebraska-Lincoln, and the Department of Energy (DOE) Office of Nuclear Energy, Nuclear Energy Enabling Technologies [grant number DE-NE0000533]. The electron microscopy with in-situ ion irradiation was accomplished at Argonne National Laboratory at the IVEM-Tandem facility, a U.S. DOE facility funded by the DOE Office of Nuclear Energy, operating under Contract No. DE-AC02-06CH11357 by UChicago Argonne, LLC. The authors would like to express their great gratitude to Mark Kirk, Peter M. Baldo, Edward A. Ryan, and Meimei Li for their help with the operation of this facility. The research was performed in part in the Nebraska Nanoscale Facility: National Nanotechnology Coordinated Infrastructure and the Nebraska Center for Materials and Nanoscience, which are supported by the National Science Foundation under Award ECCS 1542182 and the Nebraska Research Initiative. Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",
year = "2017",
month = jun,
day = "1",
doi = "10.1016/j.jnucmat.2017.03.046",
language = "English (US)",
volume = "489",
pages = "203--210",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier B.V.",
}