Detail publikace

Bending and Torsion Fatigue of Inconel 713LC with and withouth Diffusion Coating

SLÁMEČKA, K. BONAVENTUROVÁ, K. POKLUDA, J.

Originální název

Bending and Torsion Fatigue of Inconel 713LC with and withouth Diffusion Coating

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Experimental results of low-cycle fatigue loading of cylindrical specimens made of the cast nickel-based superalloy, Inconel 713LC, that were prepared with and without the diffusion aluminide coating are presented in the paper. Specimens were subjected to symmetrical bending and torsion loadings with the sine shape of the loading cycle of frequency f = 30 Hz under the load-control regime. Experiments were carried out at room temperature in the laboratory air environment by means of the testing stand MZGS-200 of the polish provenance up to a final rupture. In the case of bending loading, the diffusion coating leads to a decrease of the fatigue life. Conversely, the presence of the coating improves the fatigue performance in the case of the torsional loading. Fracture surfaces of selected specimens were observed in the scanning electron microscope. Fractographical analysis revealed that the different bending and torsion fatigue behaviour was mainly caused by different initiation mechanisms. An accelerated crack initiation took place at the carbide/matrix interface within the inner sub-layer of the diffusion coating during the bending loading due to a high tensile stress component on the specimen surface. On the other hand, the crack initiation was not influenced by carbides in the case of torsion loading where the tensile stress components were negligible.

Klíčová slova

fatigue, bending, torsion, Inconel 713LC, diffusion coating

Autoři

SLÁMEČKA, K.; BONAVENTUROVÁ, K.; POKLUDA, J.

Rok RIV

2011

Vydáno

18. 5. 2011

Nakladatel

Tanger sro

Místo

Ostrava

ISBN

978-80-87294-24-6

Kniha

METAL 2011 Conference Proceedings

Edice

Metal

Číslo edice

1

Strany od

692

Strany do

697

Strany počet

6

BibTex

@inproceedings{BUT89316,
  author="Karel {Slámečka} and Kateřina {Bonaventurová} and Jaroslav {Pokluda}",
  title="Bending and Torsion Fatigue of Inconel 713LC with and withouth Diffusion Coating",
  booktitle="METAL 2011 Conference Proceedings",
  year="2011",
  series="Metal",
  number="1",
  pages="692--697",
  publisher="Tanger sro",
  address="Ostrava",
  isbn="978-80-87294-24-6"
}