@inproceedings{392feb66637e43d4948f01325c21dbdd,
title = "HRTEM study of the role of nanoparticles in ODS ferritic steel under dual-ion irradiation",
abstract = "Structures of nanoparticles and their role in dual-ion irradiated Fe-16Cr-4.5Al-0.3Ti-2W-0.37Y 2O 3 (K3) ODS ferritic steel produced by mechanical alloying (MA) were studied using high-resolution transmission electron microscopy (HRTEM) techniques. The observation of Y 4Al 2O 9 complex-oxide nanoparticles in the ODS steel imply that decomposition of Y 2O 3 in association with internal oxidation of Al occurred during mechanical alloying. HRTEM observations of crystalline and partially crystalline nanoparticles larger than ∼2 nm and amorphous cluster-domains smaller than ∼2 nm provide an insight into the formation mechanism of nanoparticles/clusters in MA/ODS steels, which we believe involves solid-state amorphization and re-crystallization. The role of nanoparticles/clusters in suppressing radiation-induced swelling is revealed through TEM examinations of cavity distributions in (Fe + He) dual-ion irradiated K3-ODS steel. HRTEM observations of helium-filled cavities (helium bubbles) preferably trapped at nanoparticle/clusters in dual-ion irradiated K3-ODS are presented.",
author = "Luke Hsiung and Scott Tumey and Michael Fluss and Yves Serruys and Francois Willaime",
year = "2011",
month = dec,
day = "1",
doi = "10.1557/opl.2011.1444",
language = "English",
isbn = "9781618395092",
series = "Materials Research Society Symposium Proceedings",
pages = "35--46",
booktitle = "New Methods in Steel Design - Steel Ab Initio",
note = "2010 MRS Fall Meeting ; Conference date: 29-11-2010 Through 03-12-2010",
}