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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/206606
Title: The mechanisms of element redistribution in the surface layer of multicomponent alloys during their irradiation by high power pulsed ion beams
Authors: Shulov, V. A.
Nochovnaya, N. A.
Remnev, G. E.
Kalenov, V. A.
Issue Date: 1999
Publisher: Минск : БГУ
Citation: Взаимодействие излучений с твердым телом: Материалы III междунар. науч. конф., 6-8 окт. 1999 г., Минск: В 2 ч. Ч.2. — Мн.: БГУ, 1999. — С. 112-115.
Abstract: It is shown that redistribution of elements in the surface layer proceeds depending on a type of the stable diagram ("based" element-alloyed element) if treatment by high power pulsed ion beam takes place under the melting condition, when irradiation has been conducted at low values of ion current density (j<60 A cm'2). Here the impurity having a coefficient of distribution (ki) lesser 1 is supplanted by the solidified front to the surface but if ki>1 than the element is concentrated in the zone between matrix and solidified alloy. This mechanism and else a mechanism of intense evaporation of volatile components proceed during irradiation at higher values of j. At j>120-140 A cm'2 the chemical composition of the surface changes "from point to point” to a great extent due to crater formation.
URI: http://elib.bsu.by/handle/123456789/206606
ISBN: 985-445-237-9
Appears in Collections:1999. Взаимодействие излучений с твердым телом

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