Microstructure Characterization of Ion-irradiated Ferritic/Martensitic HT9 Steel

Evaporation of ion - irradiated disks

We calculate the evaporation of a cool accretion disk around a black hole due to the ion-bombardment by an ion supported accretion flow (here ISAF, or optically thin ADAF). As first suggested by Spruit & Deufel (2002), this evaporation takes place in two stages: ion bombardment of the cool disk (Shakura-Sunyaev disk: SSD) produces an intermediate-temperature layer on top of the disk ('warm laye...

Characterization of Microstructure and Mechanical Properties of Resistance Spot Welded DP600 Steel

Resistance spot welding (RSW) as a predominant welding technique used for joining steels in automotive applications needs to be studied carefully in order to improve the mechanical properties of the spot welds. The objectives of the present work are to characterize the resistance spot weldment of DP600 sheet steels. The mechanical properties of the welded joints were evaluated using tensile-she...

Deformation behavior of ion-irradiated polyimide

Small angle neutron scattering (SANS) investigation of irradiated manet steel

SANS was used to investigate the growth of He-bubbles in a martensitic steel developed for fusion reactors ("MANET"). The investigated sample were simultaneously irradiated at high temperature with high-energy protons and alpha particles and then submitted to fatigue. Differences in the SANS curves were observed between the irradiated and non irradiated samples; they were attributed to radiatio...

Microstructure of heavily deformed magnesium-lithium composites containing steel fibers

The microstructure of deformation-processed metal-metal composites (DMMC) of Mg-Li alloys containing steel reinforcing fibers was characterized to correlate the fiber size to the deformation strain and mechanical properties of the composite material. Micrographs taken using scanning and transmission electron microscopy techniques revealed fiber sizes larger than predicted from the deformation a...