Application of pulsed plasma accelerators for surface modification

• Autorzy: Tereshin V. , Chebotarev V. , Garkusha I. , Bovda A.
• Języki publikacji: EN

Abstrakty

EN

A pulsed coaxial plasma accelerator was utilized in the experiments discussed in this paper. Plasma streams with ion energy up to 2 keV, plasma density 2-3×1014 cm-3, and plasma energy density 5-40 J/cm-2, were generated. Such a plasma was used for the surface modification of different constructional steels. Experimental results on improvement of physical properties of metal surfaces (first of all tribological characteristics), under their irradiation by pulsed plasma streams are presented. Optimization of the treatment process was carried out varying plasma energy flux, plasma density, and energy of ions. It was shown that microhardness of the steel samples, both non-quenched and previously quenched, was increased by several times after plasma irradiation. The main attention was paid to the analysis of wear resistance of the treated material by using different methods of wear tests. The possibility to achieve a sufficient decrease of the wear rate of the treated samples was demonstrated.

Słowa kluczowe

EN

modification; plasma stream; plasma treatment; surface; wear resistance

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, nr 1
• Strony: 27--30
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Tereshin V.

• Institute of Plasma Physics of the National Scientific Center, "Kharkov Institute of Physics & Technology", 61108 Kharkov, Ukraine, Tel.: [phone], Fax: [phone]

autor

Chebotarev V.

• Institute of Plasma Physics of the National Scientific Center, "Kharkov Institute of Physics & Technology", 61108 Kharkov, Ukraine, Tel.: [phone], Fax: [phone]

autor

Garkusha I.

• Institute of Plasma Physics of the National Scientific Center, "Kharkov Institute of Physics & Technology", 61108 Kharkov, Ukraine, Tel.: [phone], Fax: [phone]

autor

Bovda A.

• Institute of Solid Physics of the National Scientific Center, “Kharkov Institute of Physics & Technology”, 61108 Kharkov, Ukraine

Bibliografia

• 1. Chebotarev VV, Derepowskij NT, Garkusha IE et al. (1997) Surface modification of materials by pulsed plasma streams of various working gases. In: Int Symp PLASMA’97: Research and applications of plasmas. Jarno∏tówek, Poland 1:209–212
• 2. Garkusha IE, Byrka OV, Chebotarev VV et al. (2000) Properties of modified surface layers of industrial steels samples processed by pulsed plasma streams. Vacuum 58;2–3:195–201
• 3. Hammitt FG, Chao C, Kling CL et al. (1970) ASTM Round Robin Test with vibratory cavitations and liquid impact facilities of 6061–T6511 aluminum alloy, 316 stainless steel and commercially pure nickel. Materials Research and Standards 10:16–24
• 4. Tereshin VI, Langner J, Sadowski M et al. (1997) Tribological properties of pulsed plasma treated steels: comparative studies. In: Int Symp PLASMA’97: Research and applications of plasmas. Jarnołtówek, Poland 1:201–204
• 5. Tribometer No. 30 (1994) In: A tribometer user’s guide for space mechanism applications. The European Space Tribology Laboratory, Risley, pp 1–51