Applying Digital Image Correlation Technique for Studying the Growth of a Fatigue Crack in VT23 Titanium Alloy Welded Joints; Russian Journal of Nondestructive Testing; Vol. 55, iss. 5

Applying Digital Image Correlation Technique for Studying the Growth of a Fatigue Crack in VT23 Titanium Alloy Welded Joints; Russian Journal of Nondestructive Testing; Vol. 55, iss. 5

Bibliographic Details
Parent link:	Russian Journal of Nondestructive Testing Vol. 55, iss. 5.— 2019.— [P. 384-392]
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors:	Eremin A. V. Alexandr Vyacheslavovich, Smirnova A. S. Anastasiya Sergeevna, Panin S. V. Sergey Viktorovich, Pochivalov Yu. I. Yury Ivanovich
Summary:	Title screen We present results of applying a combined approach to studying fatigue fracture processes in VT23 titanium alloy with a laser-welded joint. The approach involves fractographic examination using scanning electron microscopy and analysis of strain fields at the sample surface (using digital image correlation technique). Samples with permanent connections are presented in two forms: in the initial state and subjected to post-welding treatment by ultrasonic forging and pulsed high-energy impact. It is shown that applying the proposed integrated approach to the analysis of fatigue fracture has allowed identifying features in the development of processes of nucleation and propagation of cracks and locating them in the bulk of the material, as well as determining running times after which transition from one stage to another takes place: crack initiation, stable growth, and rupture. The results have made it possible to explain the mechanisms of how post-welding treatment of permanent joints affects their fatigue properties. Режим доступа: по договору с организацией-держателем ресурса
Language:	English
Published:	2019
Subjects:	электронный ресурс труды учёных ТПУ fatigue digital image correlation method fractographic examination VT23 titanium alloy welded joints laser welding post-welding treatment усталость метод корреляции фрактографические методы сварные соединения
Online Access:	https://doi.org/10.1134/S1061830919050036
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663494

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