Application of a low-pressure arc discharge for formation of hard diffusion surface layers

N. N. Koval, S. V. Grigoriev, Yu F. Ivanov, I. V. Lopatin, N. V. Strumilova, A. V. Shirinkina

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Investigations of surface modification of structural and tool steels treated in low-pressure arc discharges plasmas have been carried out. The complex treatment in single vacuum cycle involved a sequence of operations: ion cleaning of the surface and heating the sample, diffusion surface alloying with aluminum and nitriding. The sample temperature was not over 620°C at all stages of the process and the total time of treatment was approximately 2 hr. The structure, phase and element constitution, and microhardness of the surface layer have been investigated. It has been established that the significant increase in microhardness from 2-2.5 in the original state to 10-13 GPa in the modified layer after complex diffusion saturation in an arc discharge is due to the formation of iron nitride containing dispersed particles of aluminum nitride.

Original languageEnglish
Title of host publicationProceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
Pages583-586
Number of pages4
Volume2
DOIs
Publication statusPublished - 2004
EventProceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV - Yalta, Ukraine
Duration: 27 Sep 20041 Oct 2004

Other

OtherProceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
CountryUkraine
CityYalta
Period27.9.041.10.04

ASJC Scopus subject areas

  • Engineering(all)

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