Micromagnetic Microstructure- and Stress-Independent Materials Characterization in Reactor Safety Research

Micromagnetic Microstructure- and Stress-Independent Materials Characterization in Reactor Safety Research

Reactor safety research aims at the safe operation of nuclear power plants during their service life. In this respect, Fraunhofer IZFP’s micromagnetic multiparameter, microstructure, and stress analysis (3MA) has already made a significant contribution to the understanding of different aging mechani...

Full description

Saved in:
Bibliographic Details
Published in:Materials Vol. 14; no. 18; p. 5258
Main Authors: Zimmer, Cyril, Rallabandi, Yashashwini Nikhitha, Szielasko, Klaus, Eichheimer, Christian, Luke, Michael, Youssef, Sargon
Format: Journal Article
Language:English
Published: Basel MDPI AG 13-09-2021
MDPI
Subjects:
Aging (materials)
Algorithms
Automation
Coordinate transformations
Deformation
Discriminant analysis
Feature extraction
Harmonic analysis
Machine learning
Magnetic materials
Mechanical properties
Microstructure
Nondestructive testing
Nuclear power plants
Nuclear safety
Permeability
Reactor safety
Sensors
Service life
Stress analysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Reactor safety research aims at the safe operation of nuclear power plants during their service life. In this respect, Fraunhofer IZFP’s micromagnetic multiparameter, microstructure, and stress analysis (3MA) has already made a significant contribution to the understanding of different aging mechanisms of component materials and their characterization. The basis of 3MA is the fact that microstructure and mechanical stress determine both the mechanical and magnetic material behavior. The correlation between features of magnetic and mechanical material behavior enables the micromagnetic prediction of mechanical properties and stress, both of which can decisively influence the service life. The Federal Ministry for Economic Affairs and Energy (BMWi) funded this research, handling the mutually superimposed microstructural and stress-dependent influences, a substantial challenge, especially under practical conditions. This superposition leads to ambiguities in the micromagnetic features. The 3MA testing system has been extended by more sophisticated evaluation methods being able to cope with more complex datasets. Investigations dealing with the expansion of the feature extraction and machine learning methods have led to a more precise distinction between microstructural and stress-dependent influences. This approach provides the basis for future applications in reactor safety.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14185258