SPALLATION PROCESSES ON THE ANODE OF A HIGH CURRENT PULSED ELECTRON ACCELERATOR.

V. V. Belogorskii, O. P. Pecherskii, V. I. Chernobrovin, V. A. Likhachev, V. A. Morozov, Yu I. Meshcheryakov

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Investigations were conducted into the mechanism of spallation failure of the anode of a high-current accelerator under the effect of the pulsed electron beam (E equals 700 kev, I equals 200 kA, tau equals 50 nsec). Analysis of the spallation surfaces in a scanning electron microscope showed the presence of a distinctive dimpled structure. Statistical processing of the fractographs showed that the mean dimple size is 11. 5 multiplied by 10** minus **3m. In contrast to ductile fracture typical of the mechanical stress pulse times of (1-2) multiplied by 10** minus **6 sec, under the effect of the electron beam failure of the material takes place by the mechanism of normal separation at the stresses close to the theoretical strength of the material.

Язык оригиналаанглийский
Страницы (с-по)29-31
Число страниц3
ЖурналPhysics and chemistry of materials treatment
Том21
Номер выпуска1
СостояниеОпубликовано - 1 янв 1987

Предметные области Scopus

  • Технология (все)

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