The Influence of Copper Condensates Alloying with Co, Mo, Ta Transition Metals on the Structure and the Hall-Petch Dependence
| Authors | M.A. Glushchenko , E.V. Lutsenko, O.V. Sobol′ , A.E. Barmin, A.I. Zubkov |
| Affiliations |
National Technical University "Kharkiv Polytechnic Institute", 21, Kyrpychova st., 61002 Kharkov, Ukraine |
| Е-mail | maglushchenko@gmail.com |
| Issue | Volume 8, Year 2016, Number 3 |
| Dates | Received 21 April 2016; published online 03 October 2016 |
| Citation | M.A. Glushchenko, E.V. Lutsenko, O.V. Sobol′, et al., J. Nano- Electron. Phys. 8 No 3, 03015 (2016) |
| DOI | 10.21272/jnep.8(3).03015 |
| PACS Number(s) | 64.75.St, 68.35.Fx, 68.37.Lp, 81.07.Bc, 81.15.Ef. |
| Keywords | Cu-Co, Cu-Mo, Cu-Ta, Yield strength, Grain size (4) , Grain boundary segregation, Hall-Petch dependence, Supersaturated solution, Vacuum condensates. |
| Annotation |
The structure and mechanical properties of two-component copper based Cu-Co, Cu-Mo, Cu-Ta is investigated. It is shown that cobalt, molybdenum and tantalum disperse the grain structure of the copper matrix to submicron and nanometer dimension, form a supersaturated solid solution in the copper fcc lattice and heterophase structure. Reducing of the grain size of condensates is explained by the formation of adsorption layers of atoms of alloying elements on the surface of the copper matrix metal growing grains. The Hall-Petch dependences for the the yield strength are built. The dependences for Cu-Mo and Cu-Ta condensates have greater slope than a similar function for the single component copper. The observed effect is explained by the influence of monolayer grain boundary segregation of molybdenum and tantalum atoms and multilayer segregation of Co atoms. |
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List of References |
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