Syntheses and corrosion behaviors of Fe-based amorphous soft magnetic alloys with high-saturation magnetization near 1.7
- PDF / 833,239 Bytes
- 9 Pages / 584.957 x 782.986 pts Page_size
- 35 Downloads / 149 Views
Fanli Kong International Institute of Green Materials, Josai International University, Togane 283-8555, Japan
Chuntao Chang Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China
Shengli Zhu School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
Akihisa Inouea) School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China; International Institute of Green Materials, Josai International University, Togane 283-8555, Japan; and Department of Physics, King Abdulaziz University, Jeddah 22254, Saudi Arabia
El-Sayed Shalaan and Fahad Al-Marzouki Department of Physics, King Abdulaziz University, Jeddah 22254, Saudi Arabia (Received 29 April 2014; accepted 18 November 2014)
Some Fe-rich amorphous alloys of Fe–B–P–Si and Fe–B–P–Si–C systems were found to exhibit simultaneously good soft magnetic properties with high-saturation magnetization values near 1.7 T, which are higher than those for previously reported Fe-based amorphous and glassy alloys, in addition to rather good amorphous ribbon formability, good bending ductility, and rather high corrosion resistance. The corrosion resistance increased with increasing P content, accompanying by the increase in thermal stability of the amorphous phase. The decrease in the outer surface velocity of the wheel, which results in the increase of ribbon thickness, also causes an improvement of surface smoothness of the melt-spun amorphous alloy ribbons. The syntheses of new high-saturation Fe-based soft magnetic amorphous alloys without any other transition metals hold promise for future extension of Fe-based soft magnetic amorphous materials.
I. INTRODUCTION
The development of Fe-based amorphous and glassy alloys with improved performance characteristics such as amorphous forming ability, magnetic softness, and mechanical properties has been one of the major research subjects in materials science and engineering field for the last several decades,1–4 owing to the expectation of saving energy and natural resources. The most attractive points of these alloys are due to their potential for good soft magnetic properties with high-saturation magnetization by means of a simple production process from melt. Although the enrichment of Fe content for Fe-based amorphous alloys is effective for an increase in saturation magnetization, reduction in corrosion resistance has been caused simultaneously.5,6 The deterioration of corrosion resistance has led to the limitation of mass production techniques for amorphous magnetic core materials with Contributing Editor: Michael E. McHenry a) Address all correspondence to this author. e-mail: [email protected] DOI: 10.1557/jmr.2014.389 J. Mater. Res., Vol. 30, No. 4, Feb 28, 2015
http://journals.cambridge.org
Downloaded: 03 Mar 2015
inexpensive cost, because a water atomization technique has been thought to be the most important and key technology for such a requirement.7,8 Recently, special attention has been devoted to an increase in
Data Loading...
