Characterization of Ni63Cu9Fe8P20 glass forming alloy

Ziewiec, Krzysztof

doi:10.1016/j.jallcom.2004.06.040

Cited by 2 publications

(1 citation statement)

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“…2 Recently, many criteria have been proposed in terms of some combination of the characteristic temperatures, such as, glass transition temperature T g , onset crystallization temperature T x , peak crystallization temperature T p , onset melting point T m , liquidus temperature T l , and so forth: 6 Those criteria have been widely used and obtained good results in exploring the metal glass materials. [7][8][9] In this paper, a criterion , defined as ͑T g + T x ͒ / T l ͓͑T x − T g ͒ / T l ͔ ␣ has been suggested, and its validity has been checked. The comparisons of this criterion with other ones are also given in this article.…”

Section: Introductionmentioning

confidence: 99%

A criterion for evaluating glass-forming ability of alloys

Zhang¹,

Chou²

2009

Journal of Applied Physics

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Articles you may be interested inTemperature dependence of the thermoplastic formability in bulk metallic glasses Abnormal behavior of supercooled liquid region in bulk-forming metallic glasses The correlation between shear elastic modulus and glass transition temperature of bulk metallic glasses Appl. Phys. Lett. 94, 091907 (2009); 10.1063/1.3093879 Noncontact measurement of high-temperature surface tension and viscosity of bulk metallic glass-forming alloys using the drop oscillation technique Appl. Phys. Lett. 86, 014104 (2005); 10.1063/1.1844596Overheating threshold and its effect on time-temperature-transformation diagrams of zirconium based bulk metallic glasses A criterion defined as = ͑T x + T g ͒ / T l ͓͑T x − T g ͒ / T l ͔ ␣ ͑where T x is the onset crystallization temperature, T g is the glass transition temperature, T l is liquidus temperature, and ␣ is an exponent͒ is proposed to evaluate the glass-forming ability of alloy systems. Regression analysis between the logarithm of the critical cooling rate ln R c and yields value of ␣ = 0.0728. There exists a fine linear relationship between criterion and ln R c with a coefficient of determination R 2 = 0.942. The obtained relationship can be expressed as: ln R c = ͑30.10Ϯ 0.91͒ − ͑27.93Ϯ 0.97͒ . The comparisons of with all other relevant parameters: ͕=T rg ͓͑T x − T g ͒ / T g ͔ 0.143 ͖, ␥͓=T x / ͑T l + T g ͔͒, T rg ͑=T g / T l ͒, ␤͓=T x T g / ͑T l − T x ͒ 2 ͔, ␦͓=T x / ͑T l − T g ͔͒ show that this criterion has the best ability for evaluating the GFA of alloys.

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