The Effect of Thermal Annealing on Structural-phase Changes in the Ni–Ti Alloy Implanted with Krypton Ions; Russian Physics Journal; Vol. 59, iss. 2

The Effect of Thermal Annealing on Structural-phase Changes in the Ni–Ti Alloy Implanted with Krypton Ions

Bibliographic Details
Parent link:Russian Physics Journal
Vol. 59, iss. 2.— 2016.— [P. 159-165]
Main Author: Poltavtseva V. P. Valentina Petrovna
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников (ПНИЛ ЭДиП)
Other Authors: Kislitsyn S. B. Sergey Borisovich, Gyngazov (Ghyngazov) S. A. Sergey Anatolievich
Summary:Title screen
The influence of thermal annealing within the temperature range 100-300°C on the structural-phase state of a Ni-Ti alloy with shape memory effect (SME) implanted with 84Kr ions at the energies E = 280 keV and 1.75 MeV/nucl and the fluences within 5·1012-1·1020 ion/m2 is investigated. For the samples modified by 84Kr ions at E = 1.75 MeV/nucl up to the fluences 1·1020 and 5·1012 ion/m2, the formation of a martensitic NiTi phase with the B19′ structure, responsible for the SME, is revealed at the annealing temperatures 100 and 300°C, respectively, in the near-surface region corresponding to the outrange area. This is accompanied by the formation of nanosized NiTi particles in the R-phase. As the implantation fluence increases, the probability of their formation decreases. It is shown that annealing of the implanted structures can increase the strength of the Ni-Ti alloy. The degree of hardening is determined by the value of annealing temperature, and an increase in strength is primarily due to ordering of the radiation-induced defect structures (phases). A correlation between the onset temperature of a forward martensitic transition and the structural-phase state of the thermally annealed Ni-Ti alloy is established.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
ионная имплантация
титан
наночастицы
Online Access:https://doi.org/10.1007/s11182-016-0754-3
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=656353

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