Multi-objective design and optimization of hard magnetic alloys free of rare earths

R. Jha, G. S. Dulikravich, M. J. Colaço, I. N. Egorov, C. Poloni, N. Chakraborti, M. Fan, J. Schwartz, C. Koch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This work demonstrates a novel approach to design and optimization of rare-earth free magnetic materials for targeted properties by effectively using various computational and statistical tools. From the open literature, we defined the alloying elements and bounds of their concentrations to develop a new system of Alnico alloys. Initial compositions of candidate alloys were generated using a quasi-random sequence generation algorithm. Response surface methodology approach was used to develop surrogate models to efficiently link alloy chemistry with desired macroscopic properties for these multi-component systems. The most accurate meta-models were used for multi-objective optimization of desired properties by utilizing various evolutionary approaches. Various statistical tools and pattern recognition techniques were used to determine patterns and correlations within the created dataset. Pareto-optimized candidate alloys were experimentally validated and used to improve the accuracy of the response surface generation used by the multi-objective optimizer to find the next generation of Pareto-optimal alloys. Results over the cycles show significant experimentally verified improvement in the properties of these alloys.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages1287-1294
Number of pages8
ISBN (Electronic)9781510813939
StatePublished - Jan 1 2015
EventMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015 - Columbus, United States
Duration: Oct 4 2015Oct 8 2015

Publication series

NameMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
Volume2

Other

OtherMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
CountryUnited States
CityColumbus
Period10/4/1510/8/15

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Mechanics of Materials

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    Jha, R., Dulikravich, G. S., Colaço, M. J., Egorov, I. N., Poloni, C., Chakraborti, N., Fan, M., Schwartz, J., & Koch, C. (2015). Multi-objective design and optimization of hard magnetic alloys free of rare earths. In Materials Science and Technology Conference and Exhibition 2015, MS and T 2015 (pp. 1287-1294). (Materials Science and Technology Conference and Exhibition 2015, MS and T 2015; Vol. 2). Association for Iron and Steel Technology, AISTECH.