Publication detail

Interaction of fatigue and creep in MAR-M 247 superalloy

HORNÍK, V. FINTOVÁ, S. ŠMÍD, M. HUTAŘ, P. HRBÁČEK, K. KUNZ, L.

Original Title

Interaction of fatigue and creep in MAR-M 247 superalloy

Type

journal article in Scopus

Language

English

Original Abstract

Lifetime of MAR-M 247 Ni-based superalloy was experimentally studied under high-frequency cyclic loading (120 Hz) with constant tensile mean stress σm = 300 MPa at temperature 900 °C in air. The stress amplitude σa was changed in order to investigate the superalloy lifetime in a wide range of conditions, from pure creep to pure fatigue. The superposition of the stress amplitude on the mean stress does not influence the specimen lifetime until a threshold value is reached. Scanning electron microscopy was utilized for the fracture surface observation with the aim to identify the governing damage mechanisms for particular test conditions.

Keywords

creep/fatigue interaction; superalloy; MAR-M 247; high temperature

Authors

HORNÍK, V.; FINTOVÁ, S.; ŠMÍD, M.; HUTAŘ, P.; HRBÁČEK, K.; KUNZ, L.

Released

19. 2. 2020

Publisher

Elsevier B.V.

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Year of study

23

Number

1

State

Republic of Italy

Pages from

197

Pages to

202

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S2452321620301451

Full text in the Digital Library

http://hdl.handle.net/11012/193515

BibTex

@article{BUT164315,
  author="Vít {Horník} and Stanislava {Fintová} and Miroslav {Šmíd} and Pavel {Hutař} and Karel {Hrbáček} and Ludvík {Kunz}",
  title="Interaction of fatigue and creep in MAR-M 247 superalloy",
  journal="Procedia Structural Integrity",
  year="2020",
  volume="23",
  number="1",
  pages="197--202",
  doi="10.1016/j.prostr.2020.01.086",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S2452321620301451"
}