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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" }