Fatigue Crack Growth of SLM Ti-4Al-6V Processed by Ultrasonic Impact Treatment

Fatigue Crack Growth of SLM Ti-4Al-6V Processed by Ultrasonic Impact Treatment

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19).— 2019.— [020082, 4 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors: Eremin A. V. Alexandr Vyacheslavovich, Burkov M. V. Mikhail Vladimirovich, Panin S. V. Sergey Viktorovich, Byakov A. V. Anton Viktorovich
Summary:Title screen
The paper presents the investigation results of fatigue behavior of three types of materials: (i) wrought Ti-6Al4V, (ii) Ti-6Al-4V fabricated using selective laser melting and (iii) Ti-6Al-4V fabricated using selective laser melting (SLM) with subsequent post-build processing by Ultrasonic Impact Treatment (UIT). The deformation behavior and fracture pattern of the specimens under cyclic loading was studied by means of scanning electron microscopy of the fracture surfaces and digital image correlation (DIC). The results obtained show that the proposed technique for postbuild treatment of SLM specimen increases their fatigue durability by ~60%. Moreover, the latter tends to exceed the lifetime of wrought Ti-6Al-4V. SEM and DIC studies witness the increase in ductility of the post-build treated material, which is supported by more ductile fracture surface pattern and larger strain of the specimen during cyclic loading.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
трещины
ультразвуковые воздействия
лазерное плавление
сканирующая электронная микроскопия
цифровые изображения
усталостная прочность
пластичность
деформации
циклические нагружения
Online Access:https://doi.org/10.1063/1.5131949
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661480

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