Investigation of Operational Characteristics of Special-Purpose Alloy Castings / Mysik R. K.,Pavlinich S. P.,Kulakov B. A.,Bakerin S. V.,Brusnitsyn S. V.,Sulitsin A. V. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2017. - V. 58, l. 3. - P. 231-237.

ISSN/EISSN:

1067-8212 / 1934-970X

Type:

Article

Abstract:

Pilot smeltings of the intermetallic titanium alloy are performed during the work in the vacuum induction smelting installation with a ``cold crucible{''} and the blades of a gas-turbine engine are fabricated by the casting method according to investment models in the centrifugal field. The structure of the initial charge billet for casting the intermetallic titanium alloy is investigated and its chemical composition is analyzed. The process parameters of casting and results of metallographic analysis of fabricated blades are presented. It is established that the cast blade structure has a lamellar structure and consists of phases. and alpha(2). The results of testing mechanical properties are presented. It is established that ultimate tensile strength sigma(B) = 765 MPa, yield point sigma(y) = 726.5 MPa, and relative elongation delta = 1.6\%. The stress distribution on the blade pen is investigated and its distribution diagrams are constructed. Blade samples are tested for long-term strength (t = 650 degrees C, tau = 500 h), fatigue strength, and impact toughness.

Author keywords:

intermetallic titanium alloy; centrifugal casting; turbine blade; structure; fatigue strength; long-term strength; impact toughness

DOI:

10.3103/S1067821217030142

Web of Science ID:

ISI:000405702300008

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
EISSN	1934-970X
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	kafedralp@mail.ru kmitlp@mail.ru kul@lit.susu.ac.ru bakerin@mail.ru
Number-of-Cited-References	20
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	4
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	FA8NI