Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy

IMR OpenIR

	Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy; Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy
	Z. F. Dong; R. Luck; K. Lu
	2000 ; 2000
发表期刊	Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties ; Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties
ISSN	0141-8610 ; 0141-8610
卷号	80 期号:8 页码:1839-1854
摘要	By using the melt-spinning technique, a nanocrystalline (NC) Hf11Ni89 alloy was prepared which is composed of a major nanophase of HfNi5 compound (with an average grain size of about 10 nm and an interfacial phase of a Ni(Hf) solid solution. The thermal stability and the microstructure evolution kinetics of the interfacial Ni(Hf) phase were characterized by means of magnetothermal analysis (MTA). Evident magnetic property changes were observed for the interfacial phase in the NC sample at temperatures far below the detectable grain growth temperature. corresponding to diffusion of Hf (depletion) in the interfacial phase and the Ni solid-solution precipitation process from the supersaturated HfNi5 nanophase. Kinetic parameters such as characteristic temperatures and activation energies were obtained for these microstructural evolution processes by using the quantitative MTA measurements during isochronal and isothermal annealing treatments. The kinetics of the Hf depletion in the interfacial Ni(Hf) phase and the dimensionality of the Ni precipitate are found to be sensitive to the annealing temperature.; By using the melt-spinning technique, a nanocrystalline (NC) Hf11Ni89 alloy was prepared which is composed of a major nanophase of HfNi5 compound (with an average grain size of about 10 nm and an interfacial phase of a Ni(Hf) solid solution. The thermal stability and the microstructure evolution kinetics of the interfacial Ni(Hf) phase were characterized by means of magnetothermal analysis (MTA). Evident magnetic property changes were observed for the interfacial phase in the NC sample at temperatures far below the detectable grain growth temperature. corresponding to diffusion of Hf (depletion) in the interfacial phase and the Ni solid-solution precipitation process from the supersaturated HfNi5 nanophase. Kinetic parameters such as characteristic temperatures and activation energies were obtained for these microstructural evolution processes by using the quantitative MTA measurements during isochronal and isothermal annealing treatments. The kinetics of the Hf depletion in the interfacial Ni(Hf) phase and the dimensionality of the Ni precipitate are found to be sensitive to the annealing temperature.
部门归属	acad sinica, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china. chinese acad sci, beijing lab electron microscopy, inst phys, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. max planck inst met forsch, d-70174 stuttgart, germany.;lu, k (reprint author), acad sinica, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china ; acad sinica, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china. chinese acad sci, beijing lab electron microscopy, inst phys, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. max planck inst met forsch, d-70174 stuttgart, germany.;lu, k (reprint author), acad sinica, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china
关键词	Magnetic-properties Magnetic-properties Thermal-stability Thermal-stability Grain-growth Grain-growth Nickel Nickel Phosphorus Phosphorus Iron Iron
URL	查看原文 ; 查看原文
WOS记录号	WOS:000088397600010 ; WOS:000088397600010
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37021
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. F. Dong,R. Luck,K. Lu. Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy, Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy[J]. Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties, Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,2000, 2000,80, 80(8):1839-1854, 1839-1854.
APA	Z. F. Dong,R. Luck,&K. Lu.(2000).Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy.Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,80(8),1839-1854.
MLA	Z. F. Dong,et al."Microstructure evolution of the interfacial phase in a melt-spun nanocrystalline Hf-Ni alloy".Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties 80.8(2000):1839-1854.