In-service fatigue fracture mechanisms in covered disks of a TV3-117VK helicopter turbine engine

• Published in: Проблемы прочности
• Date: 2008
• Main Authors: Shanyavskii, A.A., Potapenko, Yu.A.
• Format: Article
• Language: English
• Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2008
• Subjects: Научно-технический раздел
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/48239
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: In-service fatigue fracture mechanisms in covered disks of a TV3-117VK helicopter turbine engine / A.A. Shanyavskii, Yu.A. Potapenko // Проблемы прочности. — 2008. — № 1. — С. 171-174. — Бібліогр.: 3 назв. — англ.

In-service propagatingfatigue cracks were examined in EI-698VD superalloy thin turbine covered disks ofthefirst, second, and third stages ofa TV3-117VK helicopter engine within service lifes of 200-1800 h. To reveal causes of early crack initiation and estimate a propagation time, metallographic and...