Detail publikace

ACOUSTIC EMISSION RESPONSE DURING HIGH-CYCLE FATIGUE LOADING OF INCONEL 713LC

BÁRTKOVÁ, D. VLAŠIC, F. MAZAL, P.

Anglický název

ACOUSTIC EMISSION RESPONSE DURING HIGH-CYCLE FATIGUE LOADING OF INCONEL 713LC

Typ

Stať ve sborníku v databázi WoS či Scopus

Jazyk

en

Originální abstrakt

This study presents results of high-cycle fatigue measurements of cast polycrystalline nickel superalloy Inconel 713LC and the analysis of acoustic emission response of this material. Inconel 713LC is usually used for gas turbines in aerospace and power industry. Fatigue is one of the most significant degradation mechanisms occurred in this application. Acoustic emission technique is an effective non-destructive method of detecting active structural defects or defects which could grow during service. It is also an adequate tool for monitoring a fatigue process. The particular aim of this study is to propose a methodology for evaluation of the early manifestations of fatigue damage and to describe the evolution of fatigue crack by acoustic emission parameters then. Smooth cylindrical specimens were subjected to alternating bending fatigue loading at room temperature. Two acoustic emission sensors were attached on the face of each specimen. Measured fatigue data were represented in a form of S-N curves. An examination of crack initiation sites and microstructure has been also performed. Four stages in the fatigue life of specimen were distinguishable in measured acoustic emission signal energy. It was found that for first stage of fatigue life is typical signal with highest energy.

Klíčová slova anglicky

Inconel, fatigue damage, acoustic emission, crack initiation

Vydáno

2014-05-21

Nakladatel

Tanger Ltd.

Místo

Ostrava

ISBN

978-80-87294-52-9

ISSN

NEUVEDENO

Kniha

Metal 2014: 23rd International Conference on Metallurgy and Materials

Strany od–do

1206–1211

Počet stran

6

BIBTEX


@inproceedings{BUT108515,
  author="Denisa {Bártková} and František {Vlašic} and Pavel {Mazal}",
  title="ACOUSTIC EMISSION RESPONSE DURING HIGH-CYCLE FATIGUE LOADING OF INCONEL 713LC",
  booktitle="Metal 2014: 23rd International Conference on Metallurgy and Materials",
  year="2014",
  series="2014",
  pages="1206--1211",
  publisher="Tanger Ltd.",
  address="Ostrava",
  isbn="978-80-87294-52-9"
}