Enhancement of La addition on glass forming ability and thermal stability of Al85Ni7Er8 − xLax (x = 0–4) glassy alloys

J. M. Yin; H. N. Cai; X. W. Cheng; Y. F. Xue; X. Q. Zhang; Z. Q. Xu

doi:10.1016/j.jnoncrysol.2016.08.007

Enhancement of La addition on glass forming ability and thermal stability of Al₈₅Ni₇Er_8 − xLa_x (x = 0–4) glassy alloys

J. M. Yin, H. N. Cai, X. W. Cheng^*, Y. F. Xue, X. Q. Zhang, Z. Q. Xu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

5 Citations (Scopus)

Abstract

We optimized the alloy compositions by adding La content in the Al₈₅Ni₇Er_8 − xLa_x (x = 0, 1, 2, 3, 4) alloys to improve the glass forming ability (GFA) and thermal stability. When increasing the La content x from 0 to 4, the glass transition temperature, T_g, and the crystallization temperature, T_x, of melt-spun Al₈₅Ni₇Er_8 − xLa_x (x = 0–4) alloys increased from 531 and 555.4 K to 550.5 and 577.1 K, respectively. The Al₈₅Ni₇Er_8 − xLa_x (x = 0–4) alloys exhibited high reduced glass transition temperature T_rg (= T_g / T_l, with T_l is the liquidus temperature) (> 0.44), and a wide supercooled liquid region, ΔT_x (= T_x − T_g) (> 24.3 K). Meanwhile, Al₈₅Ni₇Er_8 − xLa_x (x = 0–4) alloys exhibited high crystallization activation energies (384.5–439.8 kJ/mol), exhibiting excellent thermal stability.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	450
DOIs	https://doi.org/10.1016/j.jnoncrysol.2016.08.007
Publication status	Published - 15 Oct 2016

Keywords

Al-based
Crystallization activation energies
Glass forming ability
Large supercooled liquid region

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10.1016/j.jnoncrysol.2016.08.007

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@article{b61d6987ea614850a06e2c08f9aa51ad,

title = "Enhancement of La addition on glass forming ability and thermal stability of Al85Ni7Er8 − xLax (x = 0–4) glassy alloys",

abstract = "We optimized the alloy compositions by adding La content in the Al85Ni7Er8 − xLax (x = 0, 1, 2, 3, 4) alloys to improve the glass forming ability (GFA) and thermal stability. When increasing the La content x from 0 to 4, the glass transition temperature, Tg, and the crystallization temperature, Tx, of melt-spun Al85Ni7Er8 − xLax (x = 0–4) alloys increased from 531 and 555.4 K to 550.5 and 577.1 K, respectively. The Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high reduced glass transition temperature Trg (= Tg / Tl, with Tl is the liquidus temperature) (> 0.44), and a wide supercooled liquid region, ΔTx (= Tx − Tg) (> 24.3 K). Meanwhile, Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high crystallization activation energies (384.5–439.8 kJ/mol), exhibiting excellent thermal stability.",

keywords = "Al-based, Crystallization activation energies, Glass forming ability, Large supercooled liquid region",

author = "Yin, {J. M.} and Cai, {H. N.} and Cheng, {X. W.} and Xue, {Y. F.} and Zhang, {X. Q.} and Xu, {Z. Q.}",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2016",

month = oct,

day = "15",

doi = "10.1016/j.jnoncrysol.2016.08.007",

language = "English",

volume = "450",

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T1 - Enhancement of La addition on glass forming ability and thermal stability of Al85Ni7Er8 − xLax (x = 0–4) glassy alloys

AU - Yin, J. M.

AU - Cai, H. N.

AU - Cheng, X. W.

AU - Xue, Y. F.

AU - Zhang, X. Q.

AU - Xu, Z. Q.

PY - 2016/10/15

Y1 - 2016/10/15

N2 - We optimized the alloy compositions by adding La content in the Al85Ni7Er8 − xLax (x = 0, 1, 2, 3, 4) alloys to improve the glass forming ability (GFA) and thermal stability. When increasing the La content x from 0 to 4, the glass transition temperature, Tg, and the crystallization temperature, Tx, of melt-spun Al85Ni7Er8 − xLax (x = 0–4) alloys increased from 531 and 555.4 K to 550.5 and 577.1 K, respectively. The Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high reduced glass transition temperature Trg (= Tg / Tl, with Tl is the liquidus temperature) (> 0.44), and a wide supercooled liquid region, ΔTx (= Tx − Tg) (> 24.3 K). Meanwhile, Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high crystallization activation energies (384.5–439.8 kJ/mol), exhibiting excellent thermal stability.

AB - We optimized the alloy compositions by adding La content in the Al85Ni7Er8 − xLax (x = 0, 1, 2, 3, 4) alloys to improve the glass forming ability (GFA) and thermal stability. When increasing the La content x from 0 to 4, the glass transition temperature, Tg, and the crystallization temperature, Tx, of melt-spun Al85Ni7Er8 − xLax (x = 0–4) alloys increased from 531 and 555.4 K to 550.5 and 577.1 K, respectively. The Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high reduced glass transition temperature Trg (= Tg / Tl, with Tl is the liquidus temperature) (> 0.44), and a wide supercooled liquid region, ΔTx (= Tx − Tg) (> 24.3 K). Meanwhile, Al85Ni7Er8 − xLax (x = 0–4) alloys exhibited high crystallization activation energies (384.5–439.8 kJ/mol), exhibiting excellent thermal stability.

KW - Al-based

KW - Crystallization activation energies

KW - Glass forming ability

KW - Large supercooled liquid region

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DO - 10.1016/j.jnoncrysol.2016.08.007

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AN - SCOPUS:84981234323

SN - 0022-3093

VL - 450

SP - 123

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JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

ER -

Enhancement of La addition on glass forming ability and thermal stability of Al₈₅Ni₇Er_8 − xLa_x (x = 0–4) glassy alloys

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