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Hindi Journal of Nuclear Energy Science & Power Generation TechnologyISSN: 2325-9809
Dudka OV Author
Subjects of specialization
Affiliation
Grain boundaries
National Scientific Center, Kharkov Institute of Physics and Technology, Academicheskaja, Kharkov, Ukraine
Biography
Dudka OV is working in the National Scientific Center, Kharkov Institute of Physics and Technology, Academicheskaja, Kharkov, Ukraine, Helium Induced Reduction of the Grain-Boundary Tensile Strength in Tungsten
Publications
Research Article Subscription
Helium Induced Reduction of the Grain-Boundary Tensile Strength in Tungsten
Author(s): Ksenofontov VA, Mazilova TI, Sadanov EV, Dudka OV, Mazilov AA, Starchenko IV, and Mikhailovskij IM
Helium Induced Reduction of the Grain-Boundary Tensile Strength in Tungsten
We perform an experimental investigation and computer modeling of the influence of the heliu m segregation on the inherent strength of high-angle grain boundaries in tungsten, which is a promising plasma-facing material in nuclear fusion devices. Tensile tests of tungsten bicrystals were conducted inside a field-ion microscope by means of high-field mechanical loading. It is shown that the intergranular helium adsorption induces reduction of the inherent grain-boundary tensile strength.
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