Surface modification of steels by complex diffusion saturation in low pressure arc discharge

Abstract

A technique for surface hardening of type 4140 structural steel is proposed. The technique is based on the use of low pressure arc discharges. The complex treatment in one vacuum cycle involves a sequence of operations: Ion cleaning of the surface and heating the sample, diffusion surface alloying with aluminum and nitriding. The sample temperature is not over 620 °C at all stages of the process. 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 2.5 in the original state to 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 language	English
Pages (from-to)	419-423
Number of pages	5
Journal	Surface and Coatings Technology
Volume	169-170
DOIs	https://doi.org/10.1016/S0257-8972(03)00144-0
Publication status	Published - 2 Jun 2003

Keywords

Arc discharge
Diffusion saturation
Nitriding

ASJC Scopus subject areas

Surfaces, Coatings and Films
Condensed Matter Physics
Surfaces and Interfaces

Access to Document

10.1016/S0257-8972(03)00144-0

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Surface modification of steels by complex diffusion saturation in low pressure arc discharge. / Goncharenko, I. M.; Grigoriev, S. V.; Lopatin, I. V.; Koval, N. N.; Schanin, P. M.; Tukhfatullin, A. A.; Ivanov, Yu F.; Strumilova, N. V.

In: Surface and Coatings Technology, Vol. 169-170, 02.06.2003, p. 419-423.

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

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title = "Surface modification of steels by complex diffusion saturation in low pressure arc discharge",

abstract = "A technique for surface hardening of type 4140 structural steel is proposed. The technique is based on the use of low pressure arc discharges. The complex treatment in one vacuum cycle involves a sequence of operations: Ion cleaning of the surface and heating the sample, diffusion surface alloying with aluminum and nitriding. The sample temperature is not over 620 °C at all stages of the process. 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 2.5 in the original state to 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.",

keywords = "Arc discharge, Diffusion saturation, Nitriding",

author = "Goncharenko, {I. M.} and Grigoriev, {S. V.} and Lopatin, {I. V.} and Koval, {N. N.} and Schanin, {P. M.} and Tukhfatullin, {A. A.} and Ivanov, {Yu F.} and Strumilova, {N. V.}",

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T1 - Surface modification of steels by complex diffusion saturation in low pressure arc discharge

AU - Goncharenko, I. M.

AU - Grigoriev, S. V.

AU - Lopatin, I. V.

AU - Koval, N. N.

AU - Schanin, P. M.

AU - Tukhfatullin, A. A.

AU - Ivanov, Yu F.

AU - Strumilova, N. V.

PY - 2003/6/2

Y1 - 2003/6/2

N2 - A technique for surface hardening of type 4140 structural steel is proposed. The technique is based on the use of low pressure arc discharges. The complex treatment in one vacuum cycle involves a sequence of operations: Ion cleaning of the surface and heating the sample, diffusion surface alloying with aluminum and nitriding. The sample temperature is not over 620 °C at all stages of the process. 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 2.5 in the original state to 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.

AB - A technique for surface hardening of type 4140 structural steel is proposed. The technique is based on the use of low pressure arc discharges. The complex treatment in one vacuum cycle involves a sequence of operations: Ion cleaning of the surface and heating the sample, diffusion surface alloying with aluminum and nitriding. The sample temperature is not over 620 °C at all stages of the process. 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 2.5 in the original state to 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.

KW - Arc discharge

KW - Diffusion saturation

KW - Nitriding

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JO - Surface and Coatings Technology

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