Abstract
Phase and structural changes in surface layers of WC-TiC-Co hard alloy treated by intense pulsed electron beams (IPEB) with electron energy of 20kV are studied. IPEB energy density absorbed by surface layer was 10-80J/cm 2, pulse duration was 100-200μs. IPEB action with energy density of 30-80J/cm 2 results in the formation of tungsten-supersaturated solid solution (Ti,W)C and transformation WC→W 2C caused by melting of surface layers and their subsequent rapid quenching from liquid. Electron beam treatment leads to the formation of layered structure. Changes of structure and phase composition result in the increase of surface microhardness in 1.5-3 times and in the reduction of friction coefficient in 2-3.5 times.
| Original language | English |
|---|---|
| Pages (from-to) | 2972-2976 |
| Number of pages | 5 |
| Journal | Surface and Coatings Technology |
| Volume | 206 |
| Issue number | 11-12 |
| DOIs | |
| Publication status | Published - 15 Feb 2012 |
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Keywords
- Friction coefficient
- Hard alloy
- Intense pulsed electron beam
- Microhardness
- Phase composition
- Structure
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
Cite this
Structure, phase composition and mechanical properties of hard alloy treated by intense pulsed electron beams. / Uglov, Vladimir Vasilevich; Kuleshov, A. K.; Soldatenko, E. A.; Koval, N. N.; Ivanov, Yu F.; Teresov, A. D.
In: Surface and Coatings Technology, Vol. 206, No. 11-12, 15.02.2012, p. 2972-2976.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structure, phase composition and mechanical properties of hard alloy treated by intense pulsed electron beams
AU - Uglov, Vladimir Vasilevich
AU - Kuleshov, A. K.
AU - Soldatenko, E. A.
AU - Koval, N. N.
AU - Ivanov, Yu F.
AU - Teresov, A. D.
PY - 2012/2/15
Y1 - 2012/2/15
N2 - Phase and structural changes in surface layers of WC-TiC-Co hard alloy treated by intense pulsed electron beams (IPEB) with electron energy of 20kV are studied. IPEB energy density absorbed by surface layer was 10-80J/cm 2, pulse duration was 100-200μs. IPEB action with energy density of 30-80J/cm 2 results in the formation of tungsten-supersaturated solid solution (Ti,W)C and transformation WC→W 2C caused by melting of surface layers and their subsequent rapid quenching from liquid. Electron beam treatment leads to the formation of layered structure. Changes of structure and phase composition result in the increase of surface microhardness in 1.5-3 times and in the reduction of friction coefficient in 2-3.5 times.
AB - Phase and structural changes in surface layers of WC-TiC-Co hard alloy treated by intense pulsed electron beams (IPEB) with electron energy of 20kV are studied. IPEB energy density absorbed by surface layer was 10-80J/cm 2, pulse duration was 100-200μs. IPEB action with energy density of 30-80J/cm 2 results in the formation of tungsten-supersaturated solid solution (Ti,W)C and transformation WC→W 2C caused by melting of surface layers and their subsequent rapid quenching from liquid. Electron beam treatment leads to the formation of layered structure. Changes of structure and phase composition result in the increase of surface microhardness in 1.5-3 times and in the reduction of friction coefficient in 2-3.5 times.
KW - Friction coefficient
KW - Hard alloy
KW - Intense pulsed electron beam
KW - Microhardness
KW - Phase composition
KW - Structure
UR - http://www.scopus.com/inward/record.url?scp=84856421238&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84856421238&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2011.12.032
DO - 10.1016/j.surfcoat.2011.12.032
M3 - Article
AN - SCOPUS:84856421238
VL - 206
SP - 2972
EP - 2976
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
IS - 11-12
ER -