The Selection of Heat Treatment Parameters to Obtain Austempered Ductile Iron with the Required Impact Strength

The effect of austempering parameters on impact energy of non-alloyed cast iron with nodular graphite was examined. The analysis involved the austenitizing temperature in the range of 830-950 °C for the time of 60 min and the austempering temperature in the range of 300-400 °C for the time of 8, 16,...

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Bibliographic Details
Published in:Journal of materials engineering and performance 2018-11, Vol.27 (11), p.5865-5878
Main Authors: Wilk-Kołodziejczyk, Dorota, Regulski, Krzysztof, Giętka, Tomasz, Gumienny, Grzegorz, Jaśkowiec, Krzysztof, Kluska-Nawarecka, Stanisława
Format: Article
Language:English
Subjects:
CAST IRON
Characterization and Evaluation of Materials
Chemistry and Materials Science
COMPUTERIZED SIMULATION
Corrosion and Coatings
DECISION TREE ANALYSIS
Engineering Design
GRAPHITE
HEAT TREATMENTS
IMPACT STRENGTH
LEARNING
MATERIALS SCIENCE
NEURAL NETWORKS
Quality Control
Reliability
Safety and Risk
Tribology
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Summary:The effect of austempering parameters on impact energy of non-alloyed cast iron with nodular graphite was examined. The analysis involved the austenitizing temperature in the range of 830-950 °C for the time of 60 min and the austempering temperature in the range of 300-400 °C for the time of 8, 16, 32 and 64 min. The value of the impact energy KV was determined. It has been found that the austenitizing temperature and austempering conditions affect the impact energy of ADI. The conducted analytical studies helped to develop a method for the selection of heat treatment parameters to obtain the ausferritic ductile iron with appropriate impact energy KV. The applied machine learning methods included support vector machine, decision trees, artificial neural networks and the method of variational component analysis.
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-018-3714-y