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- Title
Glass forming ability and magnetic properties of Fe-B-Si-EM (EM = Ti, Zr, Mo, and Hf) alloys with high iron content.
- Authors
Li, Wen; Yang, Y.; Yao, C.; Xie, Z.; Xie, C.
- Abstract
A series of high iron content Fe -B -Si -EM (EM = Early transition metal) amorphous/nanocrystalline alloy ribbons were fabricated by melt spinning. The effects of EM on glass forming ability, thermal stability and magnetic properties of FeBSiEM alloys were investigated. Based on XRD patterns of the melt-spun ribbons, a completely amorphous structure forms in FeBSiMo alloy, and partial α-Fe phase precipitates in the (200) crystal plane in FeBSiTi FeBSiZr and FeBSiHf alloys. These alloys show excellent thermal stability, especially for FeBSiMo and FeBSiHf alloys; the temperature interval between the first and the second onset crystallization temperature (∆T = T−T) can reach 298 °C. Compared with the other alloys, the FeBSiMo alloy exhibits higher saturation magnetization M of approximately 152.8 emu/g and lower coercivity H of about 11.3 A/m, thereby showing excellent magnetic properties in the as-quenched state. When annealed at the temperature close to the first crystalline peak temperature (T) for 0.5 h, a clear diffraction pattern consisting of three peaks appears; this pattern is identified as bcc α-Fe phase. Proper annealing treatment can optimize the magnetic properties. The optimal annealing temperature range is found to be 550-650 °C.
- Subjects
IRON; BORON; SILICON; NANOCRYSTAL synthesis; NANOCRYSTALS manufacturing
- Publication
Journal of Materials Science: Materials in Electronics, 2017, Vol 28, Issue 14, p10218
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-017-6788-7