Crater formation on the surface of metals and alloys bombarded with high-power ion beams: the effect of a preliminary treatment of the surface

Abstract

Auger electron spectroscopy, scanning electron microscopy and optical microscopy in a polarized light were used to study the physico-chemical state of the surface of refractory titanium alloys (VT25U, VT8M, VT9 and VT33) and steels (EP866sh and EP718ID) subjected to various mechanical and chemical treatments, a continuous and pulsed implantation followed by exposure to a 300 keV nanosecond beam of carbon ions (70%) and protons (30%) at two ion current densities 60-80 and 120-140 A/cm² in a pulse. It is shown that pretreatment of materials can drastically change the number, size and surface distribution of radiation-induced craters. The possible mechanisms for crater formation are discussed. The most likely explanation for the craters caused by a high-power ion beam irradiation is screening of some surface regions at the initial stage of the pulse action as a result of the formation of a heterogeneous vapor-plasma cloud of volatile substances (primarily hydrocarbons) adsorbed at the surface.

Original language	English
Pages (from-to)	1145-1157
Number of pages	13
Journal	Physics, chemistry and mechanics of surfaces
Volume	11
Issue number	11
Publication status	Published - 1995

ASJC Scopus subject areas

Engineering(all)

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Crater formation on the surface of metals and alloys bombarded with high-power ion beams : the effect of a preliminary treatment of the surface. / Shulov, V. A.; Remnev, G. E.; Nochovnaya, N. A.; Polyakova, I. G.; Isakov, I. F.; Ryabchikov, A. I.; Koshcheev, V. A.; Popova, R. P.

In: Physics, chemistry and mechanics of surfaces, Vol. 11, No. 11, 1995, p. 1145-1157.

Research output: Contribution to journal › Article › peer-review

Shulov, V. A. ; Remnev, G. E. ; Nochovnaya, N. A. ; Polyakova, I. G. ; Isakov, I. F. ; Ryabchikov, A. I. ; Koshcheev, V. A. ; Popova, R. P. / Crater formation on the surface of metals and alloys bombarded with high-power ion beams : the effect of a preliminary treatment of the surface. In: Physics, chemistry and mechanics of surfaces. 1995 ; Vol. 11, No. 11. pp. 1145-1157.

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title = "Crater formation on the surface of metals and alloys bombarded with high-power ion beams: the effect of a preliminary treatment of the surface",

abstract = "Auger electron spectroscopy, scanning electron microscopy and optical microscopy in a polarized light were used to study the physico-chemical state of the surface of refractory titanium alloys (VT25U, VT8M, VT9 and VT33) and steels (EP866sh and EP718ID) subjected to various mechanical and chemical treatments, a continuous and pulsed implantation followed by exposure to a 300 keV nanosecond beam of carbon ions (70%) and protons (30%) at two ion current densities 60-80 and 120-140 A/cm2 in a pulse. It is shown that pretreatment of materials can drastically change the number, size and surface distribution of radiation-induced craters. The possible mechanisms for crater formation are discussed. The most likely explanation for the craters caused by a high-power ion beam irradiation is screening of some surface regions at the initial stage of the pulse action as a result of the formation of a heterogeneous vapor-plasma cloud of volatile substances (primarily hydrocarbons) adsorbed at the surface.",

author = "Shulov, {V. A.} and Remnev, {G. E.} and Nochovnaya, {N. A.} and Polyakova, {I. G.} and Isakov, {I. F.} and Ryabchikov, {A. I.} and Koshcheev, {V. A.} and Popova, {R. P.}",

year = "1995",

language = "English",

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pages = "1145--1157",

journal = "Physics, chemistry and mechanics of surfaces",

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TY - JOUR

T1 - Crater formation on the surface of metals and alloys bombarded with high-power ion beams

T2 - the effect of a preliminary treatment of the surface

AU - Shulov, V. A.

AU - Remnev, G. E.

AU - Nochovnaya, N. A.

AU - Polyakova, I. G.

AU - Isakov, I. F.

AU - Ryabchikov, A. I.

AU - Koshcheev, V. A.

AU - Popova, R. P.

PY - 1995

Y1 - 1995

N2 - Auger electron spectroscopy, scanning electron microscopy and optical microscopy in a polarized light were used to study the physico-chemical state of the surface of refractory titanium alloys (VT25U, VT8M, VT9 and VT33) and steels (EP866sh and EP718ID) subjected to various mechanical and chemical treatments, a continuous and pulsed implantation followed by exposure to a 300 keV nanosecond beam of carbon ions (70%) and protons (30%) at two ion current densities 60-80 and 120-140 A/cm2 in a pulse. It is shown that pretreatment of materials can drastically change the number, size and surface distribution of radiation-induced craters. The possible mechanisms for crater formation are discussed. The most likely explanation for the craters caused by a high-power ion beam irradiation is screening of some surface regions at the initial stage of the pulse action as a result of the formation of a heterogeneous vapor-plasma cloud of volatile substances (primarily hydrocarbons) adsorbed at the surface.

AB - Auger electron spectroscopy, scanning electron microscopy and optical microscopy in a polarized light were used to study the physico-chemical state of the surface of refractory titanium alloys (VT25U, VT8M, VT9 and VT33) and steels (EP866sh and EP718ID) subjected to various mechanical and chemical treatments, a continuous and pulsed implantation followed by exposure to a 300 keV nanosecond beam of carbon ions (70%) and protons (30%) at two ion current densities 60-80 and 120-140 A/cm2 in a pulse. It is shown that pretreatment of materials can drastically change the number, size and surface distribution of radiation-induced craters. The possible mechanisms for crater formation are discussed. The most likely explanation for the craters caused by a high-power ion beam irradiation is screening of some surface regions at the initial stage of the pulse action as a result of the formation of a heterogeneous vapor-plasma cloud of volatile substances (primarily hydrocarbons) adsorbed at the surface.

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