Effect of Surface Modification on Deformation Localization in NiTi at Cycling Tensile Loading

Dades bibliogràfiques
Parent link:AIP Conference Proceedings
Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020187, 4 p.]
Autor corporatiu: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра теоретической и прикладной механики (ТПМ)
Altres autors: Poletika T. M., Girsova S. L., Lunev A. G. Alexey Gennadievich, Meisner L. L.
Sumari:Title screen
The paper examines the regular features exhibited by transformation strain localization on macro- and mesoscale levels during cyclic loading for NiTi samples with two different surface states: the initial polished sample and the one subjected to ion implantation. The speckle photography method with speckle flicker rate measurement for image processing was used. It was shown that the initiation and the propagation of martensite, and hence the mechanical response are determined by the surface condition of the NiTi sample. Two scenarios of martensitic transformation were revealed: the heterogeneous diagonal transformation bands emerge across the sample with polished surface; a single front of the localized transformation in a Luders-like manner propagates through the sample with a modified surface.
Режим доступа: по договору с организацией-держателем ресурса
Publicat: 2016
Matèries:
Accés en línia:http://dx.doi.org/10.1063/1.4966481
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652766
Descripció
Sumari:Title screen
The paper examines the regular features exhibited by transformation strain localization on macro- and mesoscale levels during cyclic loading for NiTi samples with two different surface states: the initial polished sample and the one subjected to ion implantation. The speckle photography method with speckle flicker rate measurement for image processing was used. It was shown that the initiation and the propagation of martensite, and hence the mechanical response are determined by the surface condition of the NiTi sample. Two scenarios of martensitic transformation were revealed: the heterogeneous diagonal transformation bands emerge across the sample with polished surface; a single front of the localized transformation in a Luders-like manner propagates through the sample with a modified surface.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1063/1.4966481