Abstract
Using methods of electron microscopy, we have discovered that combined electroexplosive alloying of nickel with boron and copper gives rise to a multilayer structure. An outer amorphous crystalline layer incorporating 2-3 nm nickel-and copper-boride, oxide, and boride-oxide crystallites is formed on the alloyed surface. The intermediate (subsurface) layer 1-2 μm thick is made up of NiB 12 and Ni 4 B 3 crystallites 120-130 nm in size, with boron-and copper-oxide particles observed along the grain boundaries. The underlying thick layer exhibits a cellular Ni-Cu-B melt crystallization structure grading initially into a high-rate dendritic crystallization structure and then into a granular structure. The electroexplosive alloying process is found to bring into existence a high scalar dislocation-density substructure in nickel crystallites both in the alloyed zone and in the adjacent heat-affected zone.
| Original language | English |
|---|---|
| Pages (from-to) | 199-203 |
| Number of pages | 5 |
| Journal | Russian Physics Journal |
| Volume | 50 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2007 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Phase composition and defect substructure of nickel alloyed with boron and copper by electric explosion of conductors. / Tsvirkun, O. A.; Bagautdinov, A. Ya; Ivanov, Yu F.; Budovskikh, E. A.; Gromov, V. E.
In: Russian Physics Journal, Vol. 50, No. 3, 03.2007, p. 199-203.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Phase composition and defect substructure of nickel alloyed with boron and copper by electric explosion of conductors
AU - Tsvirkun, O. A.
AU - Bagautdinov, A. Ya
AU - Ivanov, Yu F.
AU - Budovskikh, E. A.
AU - Gromov, V. E.
PY - 2007/3
Y1 - 2007/3
N2 - Using methods of electron microscopy, we have discovered that combined electroexplosive alloying of nickel with boron and copper gives rise to a multilayer structure. An outer amorphous crystalline layer incorporating 2-3 nm nickel-and copper-boride, oxide, and boride-oxide crystallites is formed on the alloyed surface. The intermediate (subsurface) layer 1-2 μm thick is made up of NiB 12 and Ni 4 B 3 crystallites 120-130 nm in size, with boron-and copper-oxide particles observed along the grain boundaries. The underlying thick layer exhibits a cellular Ni-Cu-B melt crystallization structure grading initially into a high-rate dendritic crystallization structure and then into a granular structure. The electroexplosive alloying process is found to bring into existence a high scalar dislocation-density substructure in nickel crystallites both in the alloyed zone and in the adjacent heat-affected zone.
AB - Using methods of electron microscopy, we have discovered that combined electroexplosive alloying of nickel with boron and copper gives rise to a multilayer structure. An outer amorphous crystalline layer incorporating 2-3 nm nickel-and copper-boride, oxide, and boride-oxide crystallites is formed on the alloyed surface. The intermediate (subsurface) layer 1-2 μm thick is made up of NiB 12 and Ni 4 B 3 crystallites 120-130 nm in size, with boron-and copper-oxide particles observed along the grain boundaries. The underlying thick layer exhibits a cellular Ni-Cu-B melt crystallization structure grading initially into a high-rate dendritic crystallization structure and then into a granular structure. The electroexplosive alloying process is found to bring into existence a high scalar dislocation-density substructure in nickel crystallites both in the alloyed zone and in the adjacent heat-affected zone.
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U2 - 10.1007/s11182-007-0028-1
DO - 10.1007/s11182-007-0028-1
M3 - Article
VL - 50
SP - 199
EP - 203
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 3
ER -