Please use this identifier to cite or link to this item:
http://earchive.tpu.ru/handle/11683/35670
Title: | Positron annihilation spectroscopy of vacancy-type defects hierarchy in submicrocrystalline nickel during annealing |
Authors: | Kuznetsov, Pavel Viktorovich Mironov, Yu. P. Tolmachev, A. I. Rakhmatulina, T. V. Bordulev, Yuri Sergeevich Laptev, Roman Sergeevich Lider, Andrey Markovich Mikhailov, Andrey Anatolievich Korznikov, A. V. |
Keywords: | submicrocrystalline structure; subgrain; grain boundary; low-angle boundary; positron annihilation; dislocations; vacancy cluster; annealing; аннигиляция; позитроны; спектроскопия; дефекты; никель; отжиг; субмикрокристаллические структуры |
Issue Date: | 2014 |
Publisher: | AIP Publishing |
Citation: | Positron annihilation spectroscopy of vacancy-type defects hierarchy in submicrocrystalline nickel during annealing / P. V. Kuznetsov [et al.] // AIP Conference Proceedings. — 2014. — Vol. 1623 : International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russia, 3–5 September 2014 : [proceedings]. — [P. 327-330]. |
Abstract: | Positron annihilation and X-ray diffraction analysis have been used to study submicrocrystalline nickel samples prepared by equal channel angular pressing. In the as-prepared samples the positrons are trapped at dislocation-type defects and in vacancy clusters that can include up to 5 vacancies. The study has revealed that the main positron trap centers at the annealing temperature of deltaT= 20°C-180°C are low-angle boundaries enriched by impurities. At deltaT = 180°C-360°C, the trap centers are low-angle boundaries providing the grain growth due to recrystallization in-situ. |
URI: | http://earchive.tpu.ru/handle/11683/35670 |
Appears in Collections: | Материалы конференций |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
dx.doi.org-10.1063-1.4901488.pdf | 432,83 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.