2017 Fiscal Year Final Research Report
Nano-structural control of iron-based non-equilibrium materials by container-less solidification process
| Project/Area Number |
15K18244
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Material processing/Microstructural control engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | amorphous alloy / metallic glass / soft magnetic material / containerless process / mono-dispersed particle / nanocryatallization |
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| Outline of Final Research Achievements |
In this study, we evaluate iron-based non-equilibrium materials from the viewpoint of thermal stability and nucleation generation in supercooled liquid by using a container-less solidification process. The aims of this study were to clarify a possibility of nano-structural control, the relationship between the nano-structure and the magnetic properties.
Among various iron-based alloys, the Fe76Si9B10P5 hetero-amorphous alloy exhibits excellent amorphous forming ability, and the possibility that the high densed clusters are embedded inside is experimentally confirmed. In addition, it was confirmed that nano-crystallization can be achieved by performing an appropriate heat treatment, and excellent soft magnetic properties are exhibited. We also clarified the possibility of nano-structure control by adding minor copper element.
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| Free Research Field |
非平衡材料、粉末冶金
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