Spray formed Al-based amorphous matrix nanocomposite plate

Longchao Zhuo; Bin Yang; Hui Wang; Tao Zhang

doi:10.1016/j.jallcom.2011.02.125

Spray formed Al-based amorphous matrix nanocomposite plate

Longchao Zhuo
, Bin Yang
, Hui Wang
, Tao Zhang^*

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University
University of Science and Technology Beijing

Research output: Contribution to journal › Letter › peer-review

16 Scopus citations

Abstract

A novel Al₈₆Si_0.5Ni_4.06Co _2.94Y₆La_0.5 amorphous matrix nanocomposite plate with a rough diameter of 200 mm and a maximum thickness of 12 mm has been prepared by spray-forming. The microstructure gradient is observed, with 91.7 vol.% amorphous phase for the bottom region, 78% for the middle, and 54.3% for the top. The nanoindentation tests reveal its high microhardness of ∼420 HV. The microstructure characterization indicates that the improved mechanical properties may be attributed to the homogeneously dispersed nano-scale fcc-Al in the amorphous matrix. This work further proved the feasibility of achieving substantial fraction of amorphous phase for bulk Al-based alloys by spray forming.

Original language	English
Pages (from-to)	L169-L173
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	18
DOIs	https://doi.org/10.1016/j.jallcom.2011.02.125
State	Published - 5 May 2011

Keywords

Mechanical properties
Metallic glasses
Microstructure
Rapid-solidification

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10.1016/j.jallcom.2011.02.125

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title = "Spray formed Al-based amorphous matrix nanocomposite plate",

abstract = "A novel Al86Si0.5Ni4.06Co 2.94Y6La0.5 amorphous matrix nanocomposite plate with a rough diameter of 200 mm and a maximum thickness of 12 mm has been prepared by spray-forming. The microstructure gradient is observed, with 91.7 vol.\% amorphous phase for the bottom region, 78\% for the middle, and 54.3\% for the top. The nanoindentation tests reveal its high microhardness of ∼420 HV. The microstructure characterization indicates that the improved mechanical properties may be attributed to the homogeneously dispersed nano-scale fcc-Al in the amorphous matrix. This work further proved the feasibility of achieving substantial fraction of amorphous phase for bulk Al-based alloys by spray forming.",

keywords = "Mechanical properties, Metallic glasses, Microstructure, Rapid-solidification",

author = "Longchao Zhuo and Bin Yang and Hui Wang and Tao Zhang",

year = "2011",

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doi = "10.1016/j.jallcom.2011.02.125",

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TY - JOUR

T1 - Spray formed Al-based amorphous matrix nanocomposite plate

AU - Zhuo, Longchao

AU - Yang, Bin

AU - Wang, Hui

AU - Zhang, Tao

PY - 2011/5/5

Y1 - 2011/5/5

N2 - A novel Al86Si0.5Ni4.06Co 2.94Y6La0.5 amorphous matrix nanocomposite plate with a rough diameter of 200 mm and a maximum thickness of 12 mm has been prepared by spray-forming. The microstructure gradient is observed, with 91.7 vol.% amorphous phase for the bottom region, 78% for the middle, and 54.3% for the top. The nanoindentation tests reveal its high microhardness of ∼420 HV. The microstructure characterization indicates that the improved mechanical properties may be attributed to the homogeneously dispersed nano-scale fcc-Al in the amorphous matrix. This work further proved the feasibility of achieving substantial fraction of amorphous phase for bulk Al-based alloys by spray forming.

AB - A novel Al86Si0.5Ni4.06Co 2.94Y6La0.5 amorphous matrix nanocomposite plate with a rough diameter of 200 mm and a maximum thickness of 12 mm has been prepared by spray-forming. The microstructure gradient is observed, with 91.7 vol.% amorphous phase for the bottom region, 78% for the middle, and 54.3% for the top. The nanoindentation tests reveal its high microhardness of ∼420 HV. The microstructure characterization indicates that the improved mechanical properties may be attributed to the homogeneously dispersed nano-scale fcc-Al in the amorphous matrix. This work further proved the feasibility of achieving substantial fraction of amorphous phase for bulk Al-based alloys by spray forming.

KW - Mechanical properties

KW - Metallic glasses

KW - Microstructure

KW - Rapid-solidification

UR - https://www.scopus.com/pages/publications/79953267878

U2 - 10.1016/j.jallcom.2011.02.125

DO - 10.1016/j.jallcom.2011.02.125

M3 - 快报

AN - SCOPUS:79953267878

SN - 0925-8388

VL - 509

SP - L169-L173

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 18

ER -

Spray formed Al-based amorphous matrix nanocomposite plate

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Keywords

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