Journal of
Engineering and Computer Innovations

  • Abbreviation: J. Eng. Comput. Innov.
  • Language: English
  • ISSN: 2141-6508
  • DOI: 10.5897/JECI
  • Start Year: 2010
  • Published Articles: 26

Full Length Research Paper

Simulating of microstructure and magnetic properties of nanostructured Fe and Fe50Co50 powders by neural networks

Ali Heidari1*, Mehdi Delshad Chermahini2 and Mohammad Heidari3
  1Department of Civil Engineering, Shahrekord University, Shahrekord, Iran. 2Department of Material Science and Engineering, Kerman University, Kerman, Iran. 3Islamic Azad University, Aligodarz Branch, Aligodarz, Iran
Email: [email protected]

  • Article Number - 301407E8279
  • Vol.1(1), pp. 10-17, September 2010
  •  Published: 30 September 2010

Abstract

 

In this study, a series of experiments were performed in order to determine the effects of changing milling time on the microstructure and magnetic properties of nanostructured Fe and Fe50Co50 alloys by back propagation neural networks (BPN). The microstructure and magnetic properties of Fe and Fe50Co50 alloys were estimated using the data acquired from the experiments performed, performance values obtained were used for training a BPN whose structure was designed for this operation. The network, which has two layers as hidden layer, and output layer, has two input and five output neurons. The BPN is used for simulating the microstructure and magnetic properties of nanostructured Fe and Fe50Co50 alloys. The BPN method is found to be the most accurate and quick, the best results were obtained by the BPN by quasi-newton algorithms training with 12 neurons in the hidden layer. The quasi-newton algorithms procedure is more accurate and requires significantly less computation time than the other methods. Training was continued until the mean square error is less than 1e-3, desired error value was achieved in the BPN was tested with both data used and not used for training the network. Resultant of the test indicates the usability of the BPN in this area.

 

Key words: Nanostructured materials, mchanical alloying, microstructure, magnetic measurements, computer simulation

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