Fatigue Failure Stages of VT1-0 Titanium in Different Structural States. Study by Acoustic Emission Method

Fatigue Failure Stages of VT1-0 Titanium in Different Structural States. Study by Acoustic Emission Method

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020013, 5 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра материаловедения в машиностроении (ММС), Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра экспериментальной физики (ЭФ)
Other Authors: Bashkov O. V., Sharkeev Yu. P. Yury Petrovich, Panin S. V. Sergey Viktorovich, Kim V. А., Bashkova Т. I., Popkova А. А., Eroshenko А. Yu., Tolmachev А. I.
Summary:Title screen
The paper studies the kinetics of fatigue damage accumulation in VT1-0 titanium by the acoustic emission (AE) method. Technical grade titanium VT1-0 in various structural states was tested under cyclic bending. Submicrocrystalline Ti-specimens (SMC, with subgrain size of 200-300 nm) were fabricated by equal channel angular pressing (ECAP) from polycrystalline titanium. Ingots with ultrafine grain structure (UFG, with structure element size of 1-2 [mu]m) and coarse grain structure (CG, with structure element size of 20-30 [mu]m) were prepared by annealing at different temperatures. Fatigue stages were identified by analyzing the AE signal parameters with their classification by the source type (dislocations, micro- and macrocracks). It was revealed that the specimens with a smaller grain size are of higher fatigue durability, while AE signals at the stages of yielding and microcracking are detected later because of their low energy.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2016
Subjects:
электронный ресурс
труды учёных ТПУ
усталостные разрушения
титан
структурные состояния
акустическая эмиссия
изгибы
прессование
отжиг
усталостная долговечность
микротрещины
Online Access:http://dx.doi.org/10.1063/1.4966306
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652598

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