Effect of Si addition on the magnetic properties of melt-quenched Ni-Fe alloy strip
SCIE
SCOPUS
- Title
- Effect of Si addition on the magnetic properties of melt-quenched Ni-Fe alloy strip
- Authors
- Namkung, J; Kim, MC; Park, CG
- Date Issued
- 2007-03-25
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- A sheet manufacturing technology for 79Ni-Fe alloy, which is highly permeable and has soft magnetic properties, was developed based on the melt drag casting method. Melt drag strip was manufactured using the new 79Ni-Fe-Si alloy designed considering the strip forming ability and soft magnetic properties in the single-roll casting method. The microstructure and soft magnetic properties were measured based on following casting and heat treatment processes. Oxygen concentration within the air-heated molten 79Ni-Fe alloy decreased rapidly following the addition of a small quantity of Si to the existing 79Ni-Fe alloy. Moreover, the effect of enhancing the strip-forming ability was determined by increasing the liquidus line temperature and solidus line temperature interval of 79Ni-Fe alloy with the additional Si concentration. As a result of cold processing and proper heat treatment, the melt drag cast 79Ni-19Fe-2Si alloy exhibited excellent soft magnetic properties compared with the 79Ni-Fe alloy strip. Therefore, the forming ability of melt drag strip can be enhanced by adding a small quantity of Si to the traditional 79Ni-Fe alloy. Likewise, soft magnetic properties can be enhanced by reducing oxygen concentration within the molten metal. (c) 2006 Elsevier B.V. All rights reserved.
- Keywords
- melt drag; melt-quenched; Ni-Fe-Si alloy; permalloy; magnetic property; Si addition; PERMEABILITY; OXYGEN
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23483
- DOI
- 10.1016/j.msea.2006.03.146
- ISSN
- 0921-5093
- Article Type
- Article
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, vol. 449, page. 430 - 434, 2007-03-25
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