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 |
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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
}
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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M3 - Article
VL - 11
SP - 1145
EP - 1157
JO - Physics, chemistry and mechanics of surfaces
JF - Physics, chemistry and mechanics of surfaces
SN - 0734-1520
IS - 11
ER -