..., Zircaloy-4 samples underwent helium and proton ion irradiation up to 0.3 dpa, forming a uniform defect distribution up to 1 μm deep. Both as-received and precorroded samples were irradiated to compare the effect of metal irradiation to that of oxide layer irradiation. After irradiation, samples were...

... hydrides is discussed. zirconium growth c-loops hydrogen stress ion irradiation ZIRCONIUM IN THE NUCLEAR INDUSTRY: 17TH INTERNATIONAL SYMPOSIUM 853 STP 1543, 2015 / available online at www.astm.org / doi: 10.1520/STP154320120200 L. Tournadre,1 F. Onimus,2 J.-L. Be´chade,1 D. Gilbon,1 J.-M...

... irradiation in-situ TEM observation defect clusters Shiori Ishino,1 Naoto Sekimura,2 and Hiroaki Abe3 Journal of ASTM International, Vol. 4, No. 2 Paper ID JAI100644 Available online at www.astm.org Internal Probe to Detect Defects from Cascades In-situ Ion Irradiation Experiments Revisited ABSTRACT: Our...

... are discussed. SiC/SiC composite helium ion irradiation nano-indentation microstructure thermal desorption Journal of ASTM International, April 2004, Vol. 1, No. 4 Paper ID JAIl 1335 Available online at: www.astm.org Shuhei Nogami, t Shuhei Miwa, t Akira Hasegawa, 1and Katsunori Abe 1 Mechanical...

... Swelling and microstructure of silicon carbide (SiC) are studied by means of MeV-range ion irradiation. The material used is chemical vapor deposited high purity polycrystalline cubic (3C)-SiC. The swelling behavior is characterized by precision interferometric profilometry following ion...

... Microstructural evolution of silicon carbide fiber-reinforced silicon carbide matrix composites (SiC/SiC composites) during dual-beam ion irradiation was studied. The composites had been fabricated by means of chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP) methods...

... the microstructural consequences of the decomposition. stainless steel neutron irradiation ion irradiation spinodal-like decomposition microstructural evolution silicon titanium H. Watanabe I and F. A. Garner2 Influence of Silicon or Titanium on the Microstructural Evolution of Fe-Cr-35Ni Alloys...

... to changes in solute or solvent composition, displacement rate, and irradiation temperature. Fe-Cr-Ni alloys void swelling atomic size difference silicon molybdenum phosphorus neutron irradiation ion irradiation Frank. A. G a r n e r I, Thor L a u r i t z e n 2, and M a t t h e w A. M i t c h...

... on the helium bubble microstructure parameters has been established. The results are discussed in terms of helium trapping in the solution taking into account the formation of a secondary phase. nickel base alloys ion irradiation helium bubbles gas swelling microstructure trapping and release...

... To obtain fundamental knowledge about the stress effects on microstructural behavior in irradiated materials, we developed a tensile loading apparatus which is to be mounted on the dual-ion irradiation stage of the High-fluence Irradiation Facility of the University of Tokyo and established...

... Using transmission electron microscopy techniques, we have begun a program to study cascade defects in the high-T c superconductor YBa 2 Cu 3 O 7-δ . In situ ion irradiations in the high-voltage electron microscope (HVEM) accelerator facility at Argonne National Laboratory were performed...

... The microstructure of magnesium aluminate spinel (MgAl 2 O 4 ) and alumina (Al 2 O 3 ) has been examined with transmission electron microscopy following ion irradiation to damage levels of 0.1 to 5 keV/atom (1 to 50 dpa) at room temperature and 650°C. The ion irradiation produced interstitial...

... Fe ++ ion irradiation with and without He+ coimplantation. Ion irradiations were performed at 450, 550, and 650°C to approximately 10,20, and 40 dpa. At 550°C, approximately 20 appm He/dpa was coimplanted with the 3.8-MeV Fe ++ ions. The specimens were examined at a depth approximately halfway...

... formation, consequently diminishing the proneness of ferritic steels to embrittlement, which can be done by getting the materials to intensively nucleate secondary phases under irradiation that precludes embrittlement. ion irradiation martensitic steels microstructure void swelling dislocation...

... concentration in the matrix and makes it more evenly distributed, which may in turn increase the nodular corrosion resistance of this alloy. ion irradiation precipitates zircaloy microstructure nodular corrosion solute concentration Ji-Jung KaL ~Chuen-Horng Tsai, l and Wen-Fei Hsieh i Effects...

... geometries, number densities, and sizes to be analyzed in detail. In the present studies, molecular antimony ions have been employed with energies between 50 and 150 keV. Molecular ions were employed because the probability of clustering in titanium was found to be very low for atomic ion irradiations...

... results from the neutron-irradiated samples show that atomic size plays an important role for interstitial reordering. Annealing of the electron-irradiated specimen resulted in a higher state of order than that of the starting material. ion irradiation neutron irradiation electron irradiation...

... ferritic steels under ion irradiation up to 200 dpa were investigated. The specimens were irradiated with 200 keV C + or 3 MeV Ni 2+ ions between 698 and 898 K. Post irradiation microstructures were observed with transmission electron microscopes. Few voids were detected in MA957. Dislocation structure...

... of 0.2% after 40 dpa was observed in the 1.4914 alloy. The results confirmed the superiority of the ferritic steel over the austenitic steels in respect of void-induced swelling. stainless steels ion irradiation radiation-induced precipitation voids swelling electron microscopy fusion...

... austenitic model alloys ion irradiation segregation radiation-induced segregation Jonathan M. Perks,1 Colin A. English, 2 and Mike L. Jenkins 3 Radiation-Induced Segregation of Phosphorus in Nickel and Fe-Cr-Ni Alloys REFERENCE: Perks, J. M., English, C. A., and Jenkins, M. L., "Radiation-induced...