Development of rapidly solidified Al–Y–Ni-based alloys

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Development of rapidly solidified Al–Y–Ni-based alloys. / Squire, Peter; Chang, Isaac.

In: Materials Science and Engineering A, Vol. 449-451, 25.03.2007, p. 1009-1012.

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@article{8a07315590764f44b322c9db250051ee,
title = "Development of rapidly solidified Al–Y–Ni-based alloys",
abstract = "The present study is concerned with the effect of alloying additions (e.g. Co, Nb, Pd, La and Y) to the glass forming ability (GFA) of Al-Y-Ni alloys. Rapidly solidified ribbons of the following systems have been prepared by melt-spinning process: Al(88)sNi(x/2)Pd(x/2)Y(12-x) (x=2, 5, 10), Al(88)sNi(1)Co(1)Y(10-x)La(x) (x=0, 5, 10), Al88Ni1Nb1Y10, and Al86Ni4-xCoxY10 (x= 1, 2, 3). Characterisation of the melt spun alloys was carried out through a combination of X-ray diffractometry, differential scanning calorimetry, and transmission electron microscopy. GFA in Al88Ni1TM1Y10 (where TM = Co, Nb, Pd) increases in the following order: Nb <Co <Pd. To maintain a fully amorphous structure in Al-88-Ni-Pd-Y systems the optimum quantity of yttrium is 10 at.%. A complete substitution of Y with La, or aluminium with 2 at.% of (Co,Ni) decreases the glass forming ability in Al88Ni1Co1Y10 but increases thermal stability of the residual amorphous phase. Partial replacement of Y with La significantly improves the thermal stability of the amorphous phase in Al-Ni-Co-Y. (c) 2006 Elsevier B.V. All rights reserved.",
keywords = "glass forming ability, amorphous phase",
author = "Peter Squire and Isaac Chang",
year = "2007",
month = mar,
day = "25",
doi = "10.1016/j.msea.2006.02.274",
language = "English",
volume = "449-451",
pages = "1009--1012",
journal = "Materials Science and Engineering A",
issn = "0921-5093",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Development of rapidly solidified Al–Y–Ni-based alloys

AU - Squire, Peter

AU - Chang, Isaac

PY - 2007/3/25

Y1 - 2007/3/25

N2 - The present study is concerned with the effect of alloying additions (e.g. Co, Nb, Pd, La and Y) to the glass forming ability (GFA) of Al-Y-Ni alloys. Rapidly solidified ribbons of the following systems have been prepared by melt-spinning process: Al(88)sNi(x/2)Pd(x/2)Y(12-x) (x=2, 5, 10), Al(88)sNi(1)Co(1)Y(10-x)La(x) (x=0, 5, 10), Al88Ni1Nb1Y10, and Al86Ni4-xCoxY10 (x= 1, 2, 3). Characterisation of the melt spun alloys was carried out through a combination of X-ray diffractometry, differential scanning calorimetry, and transmission electron microscopy. GFA in Al88Ni1TM1Y10 (where TM = Co, Nb, Pd) increases in the following order: Nb <Co <Pd. To maintain a fully amorphous structure in Al-88-Ni-Pd-Y systems the optimum quantity of yttrium is 10 at.%. A complete substitution of Y with La, or aluminium with 2 at.% of (Co,Ni) decreases the glass forming ability in Al88Ni1Co1Y10 but increases thermal stability of the residual amorphous phase. Partial replacement of Y with La significantly improves the thermal stability of the amorphous phase in Al-Ni-Co-Y. (c) 2006 Elsevier B.V. All rights reserved.

AB - The present study is concerned with the effect of alloying additions (e.g. Co, Nb, Pd, La and Y) to the glass forming ability (GFA) of Al-Y-Ni alloys. Rapidly solidified ribbons of the following systems have been prepared by melt-spinning process: Al(88)sNi(x/2)Pd(x/2)Y(12-x) (x=2, 5, 10), Al(88)sNi(1)Co(1)Y(10-x)La(x) (x=0, 5, 10), Al88Ni1Nb1Y10, and Al86Ni4-xCoxY10 (x= 1, 2, 3). Characterisation of the melt spun alloys was carried out through a combination of X-ray diffractometry, differential scanning calorimetry, and transmission electron microscopy. GFA in Al88Ni1TM1Y10 (where TM = Co, Nb, Pd) increases in the following order: Nb <Co <Pd. To maintain a fully amorphous structure in Al-88-Ni-Pd-Y systems the optimum quantity of yttrium is 10 at.%. A complete substitution of Y with La, or aluminium with 2 at.% of (Co,Ni) decreases the glass forming ability in Al88Ni1Co1Y10 but increases thermal stability of the residual amorphous phase. Partial replacement of Y with La significantly improves the thermal stability of the amorphous phase in Al-Ni-Co-Y. (c) 2006 Elsevier B.V. All rights reserved.

KW - glass forming ability

KW - amorphous phase

U2 - 10.1016/j.msea.2006.02.274

DO - 10.1016/j.msea.2006.02.274

M3 - Article

VL - 449-451

SP - 1009

EP - 1012

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

SN - 0921-5093

ER -