Effect of liquidus temperature depression on glass forming ability criteria for La-Al-(Cu,Ni) alloys

Y. Zhang; Y. Li; H. Tan; G. L. Chen

doi:10.1016/j.intermet.2006.10.023

Effect of liquidus temperature depression on glass forming ability criteria for La-Al-(Cu,Ni) alloys

Y. Zhang^*
, Y. Li
, H. Tan
, G. L. Chen

^*Corresponding author for this work

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

8 Scopus citations

Abstract

Criteria for evaluating the glass forming ability of La-Al-(Cu,Ni) alloys, e.g., the extent of the supercooled liquid region ΔT_x (ΔT_x = T_x - T_g, T_g is glass transition temperature, and T_x is the onset temperature of the first crystallization event), the reduced glass transition temperature T_rg (T_rg = T_g/T_l, T_l is the liquidus temperature), the apparent activation energy of the first crystallization peak E_p1, and γ(γ = T_x / (T_g + T_l)) etc., were studied. The criteria were categorized into T_l related and T_l not related ones. The T_l related criteria, such as T_rg and γ, etc., generally use the values of T_l measured by DSC (or DTA) heating. They will be depressed to different extent with varying compositions during non-equilibrium cooling, especially for bulk glass forming alloys. This paper suggests to use the solidification temperature T_s instead of T_l.

Original language	English
Pages (from-to)	744-748
Number of pages	5
Journal	Intermetallics
Volume	15
Issue number	5-6
DOIs	https://doi.org/10.1016/j.intermet.2006.10.023
State	Published - May 2007
Externally published	Yes

Keywords

B. Glasses, metallic
C. Casting
C. Melting

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10.1016/j.intermet.2006.10.023

Cite this

@article{76db9b38abc54d31ac5bb80368f20b9b,

title = "Effect of liquidus temperature depression on glass forming ability criteria for La-Al-(Cu,Ni) alloys",

abstract = "Criteria for evaluating the glass forming ability of La-Al-(Cu,Ni) alloys, e.g., the extent of the supercooled liquid region ΔTx (ΔTx = Tx - Tg, Tg is glass transition temperature, and Tx is the onset temperature of the first crystallization event), the reduced glass transition temperature Trg (Trg = Tg/Tl, Tl is the liquidus temperature), the apparent activation energy of the first crystallization peak Ep1, and γ(γ = Tx / (Tg + Tl)) etc., were studied. The criteria were categorized into Tl related and Tl not related ones. The Tl related criteria, such as Trg and γ, etc., generally use the values of Tl measured by DSC (or DTA) heating. They will be depressed to different extent with varying compositions during non-equilibrium cooling, especially for bulk glass forming alloys. This paper suggests to use the solidification temperature Ts instead of Tl.",

keywords = "B. Glasses, metallic, C. Casting, C. Melting",

author = "Y. Zhang and Y. Li and H. Tan and Chen, \{G. L.\}",

year = "2007",

month = may,

doi = "10.1016/j.intermet.2006.10.023",

language = "英语",

volume = "15",

pages = "744--748",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

number = "5-6",

}

TY - JOUR

T1 - Effect of liquidus temperature depression on glass forming ability criteria for La-Al-(Cu,Ni) alloys

AU - Zhang, Y.

AU - Li, Y.

AU - Tan, H.

AU - Chen, G. L.

PY - 2007/5

Y1 - 2007/5

N2 - Criteria for evaluating the glass forming ability of La-Al-(Cu,Ni) alloys, e.g., the extent of the supercooled liquid region ΔTx (ΔTx = Tx - Tg, Tg is glass transition temperature, and Tx is the onset temperature of the first crystallization event), the reduced glass transition temperature Trg (Trg = Tg/Tl, Tl is the liquidus temperature), the apparent activation energy of the first crystallization peak Ep1, and γ(γ = Tx / (Tg + Tl)) etc., were studied. The criteria were categorized into Tl related and Tl not related ones. The Tl related criteria, such as Trg and γ, etc., generally use the values of Tl measured by DSC (or DTA) heating. They will be depressed to different extent with varying compositions during non-equilibrium cooling, especially for bulk glass forming alloys. This paper suggests to use the solidification temperature Ts instead of Tl.

AB - Criteria for evaluating the glass forming ability of La-Al-(Cu,Ni) alloys, e.g., the extent of the supercooled liquid region ΔTx (ΔTx = Tx - Tg, Tg is glass transition temperature, and Tx is the onset temperature of the first crystallization event), the reduced glass transition temperature Trg (Trg = Tg/Tl, Tl is the liquidus temperature), the apparent activation energy of the first crystallization peak Ep1, and γ(γ = Tx / (Tg + Tl)) etc., were studied. The criteria were categorized into Tl related and Tl not related ones. The Tl related criteria, such as Trg and γ, etc., generally use the values of Tl measured by DSC (or DTA) heating. They will be depressed to different extent with varying compositions during non-equilibrium cooling, especially for bulk glass forming alloys. This paper suggests to use the solidification temperature Ts instead of Tl.

KW - B. Glasses, metallic

KW - C. Casting

KW - C. Melting

UR - https://www.scopus.com/pages/publications/34247181258

U2 - 10.1016/j.intermet.2006.10.023

DO - 10.1016/j.intermet.2006.10.023

M3 - 文章

AN - SCOPUS:34247181258

SN - 0966-9795

VL - 15

SP - 744

EP - 748

JO - Intermetallics

JF - Intermetallics

IS - 5-6

ER -

Effect of liquidus temperature depression on glass forming ability criteria for La-Al-(Cu,Ni) alloys

Abstract

Keywords

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