Publication detail

Monotonic and cyclic properties of TiAl alloys Monotic and cyclic properties of TiAl alloys doped with Nb, Mo and C

CHLUPOVÁ, A. OBRTLÍK, K. BERAN, P. HECZKO, M. POLÁK, J. KRUML, T.

Original Title

Monotonic and cyclic properties of TiAl alloys Monotic and cyclic properties of TiAl alloys doped with Nb, Mo and C

Type

journal article in Web of Science

Language

English

Original Abstract

Six grades of TiAl alloys doped with 7 at.% Nb and variable content of C and/or Mo were studied. The as-received microstructure and phase composition of the alloys was characterized using neutron diffraction experiments and electron microscopy. They are substantially different in individual alloys. In Mo containing alloys, ordered beta0 phase is present while carbon suppresses the occurrence of this phase. Alternating lamellae of gamma and alpha2 phases are characteristic for all specimens. The specimens have been subjected to monotonic testing (tensile and compression) and to low cycle fatigue testing at ambient and at elevated temperatures. The differences in microstructure result in scatter of mechanical behaviour of the alloys, e.g. the yield stress at 750C varies from 445 to 626 MPa. The mechanical properties of the materials are discussed in relation to the initial microstructure and phase composition.

Keywords

TiAl alloys, microstructure, neutron diffraction, fatigue

Authors

CHLUPOVÁ, A.; OBRTLÍK, K.; BERAN, P.; HECZKO, M.; POLÁK, J.; KRUML, T.

RIV year

2014

Released

25. 6. 2014

Publisher

Elsevier

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

74

Number

1

State

Kingdom of the Netherlands

Pages from

405

Pages to

408

Pages count

4

URL

https://www.sciencedirect.com/science/article/pii/S1877705814008595

Full text in the Digital Library

http://hdl.handle.net/11012/194748

BibTex

@article{BUT108928,
  author="Alice {Chlupová} and Karel {Obrtlík} and Přemysl {Beran} and Milan {Heczko} and Jaroslav {Polák} and Tomáš {Kruml}",
  title="Monotonic and cyclic properties of TiAl alloys Monotic and cyclic properties of TiAl alloys doped with Nb, Mo and C",
  journal="Procedia Engineering",
  year="2014",
  volume="74",
  number="1",
  pages="405--408",
  doi="10.1016/j.proeng.2014.06.289",
  issn="1877-7058",
  url="https://www.sciencedirect.com/science/article/pii/S1877705814008595"
}