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 | |
| Publication status | Published - 2 Jun 2003 |
Fingerprint
Keywords
- Arc discharge
- Diffusion saturation
- Nitriding
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Condensed Matter Physics
- Surfaces and Interfaces
Cite this
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
}
TY - JOUR
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
UR - http://www.scopus.com/inward/record.url?scp=0038469615&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038469615&partnerID=8YFLogxK
U2 - 10.1016/S0257-8972(03)00144-0
DO - 10.1016/S0257-8972(03)00144-0
M3 - Article
AN - SCOPUS:0038469615
VL - 169-170
SP - 419
EP - 423
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -