Application of Acoustic Emission for Identification of Differences in Fatigue Damage of Selected Materials for Power Plants

Vaclav Mentl; Frantisek Vlasic; Denisa Bartkova; Pavel Mazal

doi:10.4028/www.scientific.net/KEM.627.313

Paper Titles

Deviations of Microcrack during Propagation in Thin Films of Austenitic Steel and Accompanying Accommodative Processes
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Comparison of Artificial Neural Networks and the Transfer Function Method for Force Reconstruction in Curved Composite Plates
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Fatigue Crack Growth Rates and Tensile Strength of Titanium Produced by Means of Selective Laser Melting
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Comparison of Full Field and Single Inclusion Approaches to Homogenization of Composites with Non-Ellipsoidal Pores
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Application of Acoustic Emission for Identification of Differences in Fatigue Damage of Selected Materials for Power Plants
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Work of Fracture due to Compressive Component of Loading in Wedge Splitting Test on Quasi-Brittle Cementitious Specimens
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Prediction of Corrosion Processes on Weathering Steel Bridges
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Analytical 1D Model of Delamination Development and Strength of Layered Composite Beam in Post-Buckling
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Microindentation Test Modelling in the Silicon Nitride Ceramics by Application of the Cohesive Zone Approach
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 627Application of Acoustic Emission for...

Application of Acoustic Emission for Identification of Differences in Fatigue Damage of Selected Materials for Power Plants

Abstract:

An acoustic emission is remarkable source of information about the fatigue process and its intensity under cyclic loading. Specimens made of reactor steel and INCONEL 713LC were subjected to bending fatigue loading in the high-cycle range. This study presents results of acoustic emission signal analysis. The main aim of this study is to propose a methodology for evaluation of the early manifestations of fatigue damage and to identify material changes in both materials by AE parameters. Signal comparison material indicates differences of damage mechanism in observed. An examination of crack initiation sites and microstructure has been also performed.Experiments were realized in cooperation between laboratories of Brno University of Technology and University of West Bohemia in Pilsen and its related to solving of project of the Czech Ministry of Industry and Commerce: “A diagnostic complex for the detection of pressure media and material defects in pressure components of nuclear and classic power plants“ and project New Technologies for Mechanical Engineering (NETME +).

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Periodical:

Key Engineering Materials (Volume 627)

Pages:

313-316

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.627.313

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Online since:

September 2014

Authors:

Vaclav Mentl, Frantisek Vlasic, Denisa Bartkova, Pavel Mazal

Keywords:

Acoustic Emission Method, Early Stages, Fatigue Loading, Power Plant Materials

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