Nano-amorphous (FeAl)1-xZrxalloys prepared by mechanical alloying

Xiaoyin Cheng; Yifang Ouyang; Hongwei Shi; Xiaping Zhong; Yong Du; Xiaoming Tao

doi:10.1016/j.jallcom.2005.11.029

Nano-amorphous (FeAl)_1-xZr_xalloys prepared by mechanical alloying

Xiaoyin Cheng, Yifang Ouyang, Hongwei Shi, Xiaping Zhong, Yong Du, Xiaoming Tao

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

Nano-amorphous (FeAl)1-xZrx(x = 20, 33.3) alloys have been prepared by mechanical alloying. The microstructure, morphology and thermal stability of as-milled powders were analyzed by XRD, TEM and DTA, respectively. The size of milled powders was smaller than 50 nm. The thermal stability of as-milled powders decreased with increment of Zr. The products of crystallization for milled powders annealed at temperature over the crystallization temperature were also investigated. The effective activation energies for crystallization are evaluated according Kissinger's plot. The composition range of amorphous (FeAl)1-xZrxwas predicted from Miedema's theory and a geometric model.

Original language	English
Pages (from-to)	314-318
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	421
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2005.11.029
Publication status	Published - 14 Sept 2006

Keywords

Activation energy for crystallization
Amorphous
Fe-Al-Zr alloy
Mechanical alloying

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2005.11.029

Cite this

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title = "Nano-amorphous (FeAl)1-xZrxalloys prepared by mechanical alloying",

abstract = "Nano-amorphous (FeAl)1-xZrx(x = 20, 33.3) alloys have been prepared by mechanical alloying. The microstructure, morphology and thermal stability of as-milled powders were analyzed by XRD, TEM and DTA, respectively. The size of milled powders was smaller than 50 nm. The thermal stability of as-milled powders decreased with increment of Zr. The products of crystallization for milled powders annealed at temperature over the crystallization temperature were also investigated. The effective activation energies for crystallization are evaluated according Kissinger's plot. The composition range of amorphous (FeAl)1-xZrxwas predicted from Miedema's theory and a geometric model.",

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author = "Xiaoyin Cheng and Yifang Ouyang and Hongwei Shi and Xiaping Zhong and Yong Du and Xiaoming Tao",

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AU - Cheng, Xiaoyin

AU - Ouyang, Yifang

AU - Shi, Hongwei

AU - Zhong, Xiaping

AU - Du, Yong

AU - Tao, Xiaoming

PY - 2006/9/14

Y1 - 2006/9/14

N2 - Nano-amorphous (FeAl)1-xZrx(x = 20, 33.3) alloys have been prepared by mechanical alloying. The microstructure, morphology and thermal stability of as-milled powders were analyzed by XRD, TEM and DTA, respectively. The size of milled powders was smaller than 50 nm. The thermal stability of as-milled powders decreased with increment of Zr. The products of crystallization for milled powders annealed at temperature over the crystallization temperature were also investigated. The effective activation energies for crystallization are evaluated according Kissinger's plot. The composition range of amorphous (FeAl)1-xZrxwas predicted from Miedema's theory and a geometric model.

AB - Nano-amorphous (FeAl)1-xZrx(x = 20, 33.3) alloys have been prepared by mechanical alloying. The microstructure, morphology and thermal stability of as-milled powders were analyzed by XRD, TEM and DTA, respectively. The size of milled powders was smaller than 50 nm. The thermal stability of as-milled powders decreased with increment of Zr. The products of crystallization for milled powders annealed at temperature over the crystallization temperature were also investigated. The effective activation energies for crystallization are evaluated according Kissinger's plot. The composition range of amorphous (FeAl)1-xZrxwas predicted from Miedema's theory and a geometric model.

KW - Activation energy for crystallization

KW - Amorphous

KW - Fe-Al-Zr alloy

KW - Mechanical alloying

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