Abstract
Equilibrium thermodynamic methods have been used for evaluation of possibilities of physical and chemical processes in surface layers of complex heterogeneous systems under high-power ion beam of nanosecond duration. Estimations of irradiation conditions for VT25U and EP718ID alloys when reactions of melting, sublimation, decomposition and mainphase atomization take place are carried out. After irradiation at chosen conditions (160 and 300 keV ion energy, 20-180 A/cm2 current density, 50-100 ns duration and 1-20 pulse number) investigations of physical and chemical state of high temperature alloys surface layers were carried out using Auger electron spectroscopy, scanning electron microscopy, X-ray and metallography analysis. Calculation results agree well with the experimental ones and explain the processes of carbides fraction, phases decomposition and cracks formation in surface layers.
| Original language | English |
|---|---|
| Pages (from-to) | 12-22 |
| Number of pages | 11 |
| Journal | Fizika i Khimiya Obrabotki Materialov |
| Issue number | 2 |
| Publication status | Published - Mar 1997 |
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ASJC Scopus subject areas
- Materials Science(all)
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Thermodynamic estimation of possibility of proceeding a physicochemical processes in surface layers of heat-resistant alloys under irradiation by power ion beam with nsec duration. / Shulov, V. A.; Nochovnaya, N. A.; Remnev, G. E.; Polyakova, I. G.
In: Fizika i Khimiya Obrabotki Materialov, No. 2, 03.1997, p. 12-22.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Thermodynamic estimation of possibility of proceeding a physicochemical processes in surface layers of heat-resistant alloys under irradiation by power ion beam with nsec duration
AU - Shulov, V. A.
AU - Nochovnaya, N. A.
AU - Remnev, G. E.
AU - Polyakova, I. G.
PY - 1997/3
Y1 - 1997/3
N2 - Equilibrium thermodynamic methods have been used for evaluation of possibilities of physical and chemical processes in surface layers of complex heterogeneous systems under high-power ion beam of nanosecond duration. Estimations of irradiation conditions for VT25U and EP718ID alloys when reactions of melting, sublimation, decomposition and mainphase atomization take place are carried out. After irradiation at chosen conditions (160 and 300 keV ion energy, 20-180 A/cm2 current density, 50-100 ns duration and 1-20 pulse number) investigations of physical and chemical state of high temperature alloys surface layers were carried out using Auger electron spectroscopy, scanning electron microscopy, X-ray and metallography analysis. Calculation results agree well with the experimental ones and explain the processes of carbides fraction, phases decomposition and cracks formation in surface layers.
AB - Equilibrium thermodynamic methods have been used for evaluation of possibilities of physical and chemical processes in surface layers of complex heterogeneous systems under high-power ion beam of nanosecond duration. Estimations of irradiation conditions for VT25U and EP718ID alloys when reactions of melting, sublimation, decomposition and mainphase atomization take place are carried out. After irradiation at chosen conditions (160 and 300 keV ion energy, 20-180 A/cm2 current density, 50-100 ns duration and 1-20 pulse number) investigations of physical and chemical state of high temperature alloys surface layers were carried out using Auger electron spectroscopy, scanning electron microscopy, X-ray and metallography analysis. Calculation results agree well with the experimental ones and explain the processes of carbides fraction, phases decomposition and cracks formation in surface layers.
UR - http://www.scopus.com/inward/record.url?scp=0031084276&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031084276&partnerID=8YFLogxK
M3 - Article
SP - 12
EP - 22
JO - Fizika i Khimiya Obrabotki Materialov
JF - Fizika i Khimiya Obrabotki Materialov
SN - 0015-3214
IS - 2
ER -