Details
| Original language | English |
|---|---|
| Title of host publication | European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation |
| Publisher | Associazione Italiana di Metallurgia |
| ISBN (electronic) | 9788898990030 |
| Publication status | Published - 2015 |
| Event | European Conference on Heat Treatment 2015 and 22nd Heat Treatment and Surface Engineering from Tradition to Innovation Congress, IFHTSE 2015 - Venice, Italy Duration: 20 May 2015 → 22 May 2015 |
Publication series
| Name | European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation |
|---|
Abstract
A new monitoring system was developed, that enables a contact-free and in situ, non-destructive monitoring of the material's transformation and microstructure's development during the cooling phase from the austenitic region. For this purpose characteristic changes in the electrical and magnetic properties that occur during the formation of ferromagnetic phases and microstructures are measured using eddy-current technology and the analysis of harmonic signal components. The monitoring system provides information about the onset of the transformation, the current transformation level and the end of the transformation in steel components as well as information about the evolution of the microstructural components, i.e. ferrite-pearlite, bainite and martensite. By evaluating the measured signal online in real time it is possible to classify and differentiate the evolution of microstructures, to regulate the cooling parameters, and therefore to specifically set the component's properties. The monitoring system and the robust eddy-current sensors can be employed in industrial environments at component temperatures of up to 1250°C in different environments, such as salt-baths, furnaces, spraying fields or in air.
Keywords
- Eddy-current technology, Forging process, Harmonic analysis, In situ monitoring system, Microstructure evolution, Phase transformation, Quality assurance
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
- Materials Science(all)
- General Materials Science
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European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation. Associazione Italiana di Metallurgia, 2015. (European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Non-destructive in situ monitoring of the microstructural development in high performance steel components during heat treatment
AU - Bruchwald, Oliver
AU - Frackowiak, Wojciech
AU - Reimche, Wilfried
AU - Maier, Hans Jürgen
PY - 2015
Y1 - 2015
N2 - A new monitoring system was developed, that enables a contact-free and in situ, non-destructive monitoring of the material's transformation and microstructure's development during the cooling phase from the austenitic region. For this purpose characteristic changes in the electrical and magnetic properties that occur during the formation of ferromagnetic phases and microstructures are measured using eddy-current technology and the analysis of harmonic signal components. The monitoring system provides information about the onset of the transformation, the current transformation level and the end of the transformation in steel components as well as information about the evolution of the microstructural components, i.e. ferrite-pearlite, bainite and martensite. By evaluating the measured signal online in real time it is possible to classify and differentiate the evolution of microstructures, to regulate the cooling parameters, and therefore to specifically set the component's properties. The monitoring system and the robust eddy-current sensors can be employed in industrial environments at component temperatures of up to 1250°C in different environments, such as salt-baths, furnaces, spraying fields or in air.
AB - A new monitoring system was developed, that enables a contact-free and in situ, non-destructive monitoring of the material's transformation and microstructure's development during the cooling phase from the austenitic region. For this purpose characteristic changes in the electrical and magnetic properties that occur during the formation of ferromagnetic phases and microstructures are measured using eddy-current technology and the analysis of harmonic signal components. The monitoring system provides information about the onset of the transformation, the current transformation level and the end of the transformation in steel components as well as information about the evolution of the microstructural components, i.e. ferrite-pearlite, bainite and martensite. By evaluating the measured signal online in real time it is possible to classify and differentiate the evolution of microstructures, to regulate the cooling parameters, and therefore to specifically set the component's properties. The monitoring system and the robust eddy-current sensors can be employed in industrial environments at component temperatures of up to 1250°C in different environments, such as salt-baths, furnaces, spraying fields or in air.
KW - Eddy-current technology
KW - Forging process
KW - Harmonic analysis
KW - In situ monitoring system
KW - Microstructure evolution
KW - Phase transformation
KW - Quality assurance
UR - http://www.scopus.com/inward/record.url?scp=85003561753&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85003561753
T3 - European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation
BT - European Conference on Heat Treatment 2015 and 22nd IFHTSE Congress - Heat Treatment and Surface Engineering from Tradition to Innovation
PB - Associazione Italiana di Metallurgia
T2 - European Conference on Heat Treatment 2015 and 22nd Heat Treatment and Surface Engineering from Tradition to Innovation Congress, IFHTSE 2015
Y2 - 20 May 2015 through 22 May 2015
ER -