Abstract
The effect of treatment by high intensity pulse ion beam (HPIB) and compression plasma flow (CPF) with energy density greater than 10 J/cm2 on the phase and element composition, microstructure, hardness and depth of modified layer of WC-TiC-Co hard alloy was investigated. It was found that the increase of short-pulse (9 * 10- 2 μs) HPIB energy density (due to the increase of pulses number from 3 to 300) led to the fusion of tungsten and titanium carbides particles following to formation of (W1-xTix)C solid solution oversaturated by tungsten. The formation of great number of cracks inside of fused layer and inside of carbide particles allocated below fused layer takes place as a result of impact of power shock waves generated by HPIB at great number of pulses (100, 300). The higher duration (~ 100 μs) of CPF pulse with the energy density of 13-40 J/cm2 provides convective mixing of melt's components and forms fused layer, the thickness of which reaches 8-10 μm (40 J/cm2). The hardness of the surface layer containing oversaturated (W1-xTix)C solid solution with the thickness of several microns exceeds the hardness of untreated hard alloy in 2 times.
| Original language | English |
|---|---|
| Pages (from-to) | 1952-1956 |
| Number of pages | 5 |
| Journal | Surface and Coatings Technology |
| Volume | 204 |
| Issue number | 12-13 |
| DOIs | |
| Publication status | Published - 15 Mar 2010 |
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Keywords
- Pulsed ion and plasma beam Tungsten carbide
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Surfaces and Interfaces
Cite this
Formation of hardened layer in WC-TiC-Co alloy by treatment of high intensity pulse ion beam and compression plasma flows. / Uglov, Vladimir Vasilevich; Remnev, G. E.; Kuleshov, A. K.; Astashinski, V. M.; Saltymakov, M. S.
In: Surface and Coatings Technology, Vol. 204, No. 12-13, 15.03.2010, p. 1952-1956.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Formation of hardened layer in WC-TiC-Co alloy by treatment of high intensity pulse ion beam and compression plasma flows
AU - Uglov, Vladimir Vasilevich
AU - Remnev, G. E.
AU - Kuleshov, A. K.
AU - Astashinski, V. M.
AU - Saltymakov, M. S.
PY - 2010/3/15
Y1 - 2010/3/15
N2 - The effect of treatment by high intensity pulse ion beam (HPIB) and compression plasma flow (CPF) with energy density greater than 10 J/cm2 on the phase and element composition, microstructure, hardness and depth of modified layer of WC-TiC-Co hard alloy was investigated. It was found that the increase of short-pulse (9 * 10- 2 μs) HPIB energy density (due to the increase of pulses number from 3 to 300) led to the fusion of tungsten and titanium carbides particles following to formation of (W1-xTix)C solid solution oversaturated by tungsten. The formation of great number of cracks inside of fused layer and inside of carbide particles allocated below fused layer takes place as a result of impact of power shock waves generated by HPIB at great number of pulses (100, 300). The higher duration (~ 100 μs) of CPF pulse with the energy density of 13-40 J/cm2 provides convective mixing of melt's components and forms fused layer, the thickness of which reaches 8-10 μm (40 J/cm2). The hardness of the surface layer containing oversaturated (W1-xTix)C solid solution with the thickness of several microns exceeds the hardness of untreated hard alloy in 2 times.
AB - The effect of treatment by high intensity pulse ion beam (HPIB) and compression plasma flow (CPF) with energy density greater than 10 J/cm2 on the phase and element composition, microstructure, hardness and depth of modified layer of WC-TiC-Co hard alloy was investigated. It was found that the increase of short-pulse (9 * 10- 2 μs) HPIB energy density (due to the increase of pulses number from 3 to 300) led to the fusion of tungsten and titanium carbides particles following to formation of (W1-xTix)C solid solution oversaturated by tungsten. The formation of great number of cracks inside of fused layer and inside of carbide particles allocated below fused layer takes place as a result of impact of power shock waves generated by HPIB at great number of pulses (100, 300). The higher duration (~ 100 μs) of CPF pulse with the energy density of 13-40 J/cm2 provides convective mixing of melt's components and forms fused layer, the thickness of which reaches 8-10 μm (40 J/cm2). The hardness of the surface layer containing oversaturated (W1-xTix)C solid solution with the thickness of several microns exceeds the hardness of untreated hard alloy in 2 times.
KW - Pulsed ion and plasma beam Tungsten carbide
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UR - http://www.scopus.com/inward/citedby.url?scp=76349124067&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2009.09.039
DO - 10.1016/j.surfcoat.2009.09.039
M3 - Article
AN - SCOPUS:76349124067
VL - 204
SP - 1952
EP - 1956
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
IS - 12-13
ER -