Bubble-to-void transition promoted by oxide nanoparticles in ODS-EUROFER steel ion implanted to high He content
نویسندگان
چکیده
The paper deals with a detailed study of He-filled cavity ensemble development in ODS-EUROFER steel implanted 10 keV helium ions to high peak concentration 8.5 × 103 appm both and without simultaneous irradiation 4 MeV gold ions, which allowed us strongly vary the ratios dpa/He introduction. subsequent transmission electron microscopy examination reveals excellent radiation stability He-implanted sample single-beam implantation mode. In contrast, after dual-beam bubble-to-void transition was observed for bubbles that were associated yttria nanoparticles. relative importance different He bubble families samples swelling accumulation is quantitatively assessed, emphasizing potential risks abrupt acceleration case launched by A model gas spherical second-phase particles developed used rationalize experimental observations.
منابع مشابه
Insights for void formation in ion-implanted Ge
a r t i c l e i n f o The formation of voids in ion-implanted Ge was studied as a function of ion implantation energy and dose. (001) Ge substrates were self-implanted at energies of 20–300 keV to doses of 1.0 × 10 13 –1.0 × 10 17 cm − 2. Transmission electron microscopy revealed clusters of voids just below the surface for implant energies ≤ 120 keV at a dose of 2.0 × 10 15 cm − 2 and complete...
متن کاملrisk taking in english to persian translation process by novice iranian translators
این پژوهش به بررسی ریسک پذیری مترجمان تازه کار در طی فرآیند ترجمه از زبان انگلیسی به فارسی می پردازد. پژوهش درباره مترجمان به عنوان اولین خواننده متن مبدا از اهمیت به سزایی برخوردار است. مترجمان تازه کار (و حرفه ای) در طی فرآیند ترجمه با مشکلات متعددی روبرو می شوند که باعث عدم اطمینان آنها از متن ترجمه شده می شود. با توجه به اینکه عدم اطمینان به انجام ریسک منتهی می شود، هدف این پژوهش بررسی کیفی...
Helium Bubble Linkage and the Transition to Rapid He Release in Aging Pd Tritide
A model is presented for the linking of helium bubbles growing in aging metal tritides. Stresses created by neighboring bubbles are found to produce bubble growth toward coalescence. This process is interrupted by the fracture of ligaments between bubble arrays. The condition for ligament fracture percolates through the material to reach external surfaces, leading to material micro-cracking and...
متن کاملMicrostructure Investigation of 13Cr-2Mo ODS Steel Components Obtained by High Voltage Electric Discharge Compaction Technique
Refractory oxide dispersion strengthened 13Cr-2Mo steel powder was successfully consolidated to near theoretical density using high voltage electric discharge compaction. Cylindrical samples with relative density from 90% to 97% and dimensions of 10 mm in diameter and 10-15 mm in height were obtained. Consolidation conditions such as pressure and voltage were varied in some ranges to determine ...
متن کاملInvestigation in to Properties of Polyurethane Closed Cell by High Loading of SiO2 Nanoparticles
In this research the composition of polyurethane closed cell (PUCC) with two different concentrations of SiO2 nanoparticles (1.0 and 2.0 wt%) have been prepared. Optical microscopy and SEM imaging, watering uptake, FTIR and Raman spectroscopy of the synthesized samples were carried out. The optical microscopy imaging of samples showed differences in the appearance of matrix produ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 2021
ISSN: ['1873-4820', '0022-3115']
DOI: https://doi.org/10.1016/j.jnucmat.2020.152724