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SLÁMEČKA, K. POKLUDA, J. KIANICOVÁ, M. HORNÍKOVÁ, J. OBRTLÍK, K.
Original Title
Fatigue Life of Cast Inconel 713LC with/without Protective Diffusion Coating under Bending, Torsion and their Combination
Type
journal article in Web of Science
Language
English
Original Abstract
Fatigue behaviour of cylindrical specimens made of cast Inconel 713LC nickel-based super-alloy with/without diffusion aluminide and Cr-modified aluminide protective coatings was studied under bending, torsion and combined bending–torsion loading regimes. Experiments were conducted at room temperature by using sinusoidal loading of a frequency f 30 Hz. It was found that the presence of either coating system enhances the high cycle fatigue strength for all tested loading regimes. In the low cycle fatigue region, the fatigue strength was slightly improved for torsional loading, while it was almost the same or modestly lower for loading regimes with non-zero bending component. This behaviour seems to be linked to different nucleation efficiency of secondary-phase particles within the diffusion zone. Acquired experimental data were also used to evaluate predictive capabilities of stress-basedmultiaxial fatigue failure criteria proposed by Gough, Matake and Crossland that were selected as representatives of main multiaxial fatigue failure prediction classes. Results revealed that, for a given material and loading conditions, the Matake criterion based on a critical plane approach provides the best fatigue life data estimations most of which are within a factor of two bandwidth.
Keywords
Nickel-based superalloys, Diffusion coating, Bending, Torsion, Multiaxial fatigue, Crack initiation, Fatigue life, Fractography
Authors
SLÁMEČKA, K.; POKLUDA, J.; KIANICOVÁ, M.; HORNÍKOVÁ, J.; OBRTLÍK, K.
RIV year
2013
Released
2. 11. 2013
ISBN
0013-7944
Periodical
Engineering Fracture Mechanics
Year of study
110
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
459
Pages to
467
Pages count
9
BibTex
@article{BUT100159, author="Karel {Slámečka} and Jaroslav {Pokluda} and Marta {Kianicová} and Jana {Horníková} and Karel {Obrtlík}", title="Fatigue Life of Cast Inconel 713LC with/without Protective Diffusion Coating under Bending, Torsion and their Combination", journal="Engineering Fracture Mechanics", year="2013", volume="110", number="1", pages="459--467", doi="10.1016/j.engfracmech.2013.01.001", issn="0013-7944" }