Nanocrystallization of amorphous Fe-Si-B alloys using high current density electropulsing

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	Nanocrystallization of amorphous Fe-Si-B alloys using high current density electropulsing
	Z. H. Lai; H. Conrad; G. Q. Teng; Y. S. Chao
	2000
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	287 期号:2 页码:238-247
摘要	Amorphous Fe-Si-B ribbons were nanocrystallized by using high current density de electropulsing instead of the usual annealing. The microstructural changes were investigated by TEM, SAD, XRD, and Mossbauer spectral analysis. It was found that current pulsing promotes crystallization at a lower temperature than the usual annealing temperature. The primary crystallization temperatures of Metglas 2605 S-2 and Finemet were significantly lowered by pulsing. This enabled us to obtain 20-30 vol.% of single phase, alpha-Fe(Si) with a grain size of 15-20 nm in Metglas 2605 S-2. As a consequence, certain magnetic properties of this material are improved with respect to the as-quenched state. A preliminary interpretation is given for the phenomenon of electro-nanocrystallization. (C) 2000 Elsevier Science S.A. All rights reserved.
部门归属	chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. n carolina state univ, dept mat sci & engn, raleigh, nc 27695 usa. northeastern univ, dept phys mat, shenyang 110006, peoples r china.;lai, zh (reprint author), chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china
关键词	Electropulsing Amorphous Crystallization Mossbauer Magnetic Properties Fe-si-b Alloys Stochastic Resonance Fe78b13si9 Crystallization
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WOS记录号	WOS:000088172700016
引用统计	被引频次：59[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37076
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. H. Lai,H. Conrad,G. Q. Teng,et al. Nanocrystallization of amorphous Fe-Si-B alloys using high current density electropulsing[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2000,287(2):238-247.
APA	Z. H. Lai,H. Conrad,G. Q. Teng,&Y. S. Chao.(2000).Nanocrystallization of amorphous Fe-Si-B alloys using high current density electropulsing.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,287(2),238-247.
MLA	Z. H. Lai,et al."Nanocrystallization of amorphous Fe-Si-B alloys using high current density electropulsing".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 287.2(2000):238-247.