Establishment of controlling methods of microstructure and crystallographic texture to improve the polycrystalline magnetostrictive alloy

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18230
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Ibaraki University
• Principal Investigator: Onuki Yusuke 茨城大学, フロンティア応用原子科学研究センター, 産学官連携助教 (50746998)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 高温変形 / 集合組織 / 磁歪・逆磁歪

Outline of Final Research Achievements

The iron-based alloy with gallium addition can be used as an electric generator which picks up wasted vibration energies of various instruments. The efficiency of the energy harvesting depends on the orientation of crystal along the direction of the applied force. Usually, metallic materials consist of many small crystals. Therefore, alignment of crystal orientation can enhance the efficiency of the energy harvesting. In this study, it is found that the alignment of crystal orientation can be controlled by heating and deformation, which are quite common processes in steel manufacturing.

Free Research Field

金属組織学