Nanocrystallization kinetics of amorphous Fe73.5Cu1Nb3Si13.5B9 alloy

Lü, Wei; Yang, Lei; Yan, Biao; Huang, Wenhai

doi:10.1016/j.jallcom.2005.10.049

Cited by 18 publications

(8 citation statements)

References 30 publications

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“…The E 0I is the average value which depends on the crystalline fraction and can vary from 5.9 eV down to 3.3 eV (or even to 1.54 eV) as it was shown in Ref. [22,23]. DSC can also be used to estimate crystalline volume fraction in the annealed alloys [15], by determining the crystallisation enthalpy change H a-q for a given a-q alloy and the crystallisation enthalpy change H a for the same x alloy annealed at T a within t a , with the equation: For primary crystallisation of a-q FINEMET, x = 0, it was accepted that T I ≈ 550 • C and H a-q ≈ 78 J/g [1].…”

Section: Annealed Alloysmentioning

confidence: 77%

Properties of Mn-doped FINEMET

Brzozowski

Wasiak

Piekarski

et al. 2009

Journal of Alloys and Compounds

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Section: Annealed Alloysmentioning

confidence: 77%

Properties of Mn-doped FINEMET

Brzozowski

Wasiak

Piekarski

et al. 2009

Journal of Alloys and Compounds

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“…By taking double logarithm on both sides of the equation, we can obtain the JMAK plots (ln[ln(1 – α)] −1 vs ln( t – τ )). Figure a shows the JMAK plots for the crystallization of melt-spun (Fe 40 Ni 40 B 19 Cu 1 ) 97 Nb 3 ribbons at different annealing temperatures, and the values of n are determined by the slopes of the plots Figure b shows the values of n as a function of α at different annealing temperatures.…”

Section: Resultsmentioning

confidence: 99%

The Non-Isothermal and Isothermal Crystallization Behavior and Mechanism of Fe–Ni Alloys

Chen

Zhu

Zhang

et al. 2020

Crystal Growth & Design

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(Fe40Ni40B19Cu1)97Nb3 magnetic amorphous alloys have been prepared by a melt-spun method, and their crystallization behavior and kinetics have been investigated. The results showed that under non-isothermal conditions, the growth process is easier than the nucleation process for both precipitated phases ((Fe,Ni)23B6 and γ(Fe,Ni)), and the activation energy (E a 2 = 427.03 kJ mol–1) for γ(Fe,Ni) phase is higher than that of (E a 1 = 275.11 kJ mol–1) for the (Fe,Ni)23B6 phase. Under isothermal conditions, the energy released during the entire crystallization process is independent of annealing temperature, and the crystallization parameters fit with the Kolmogorov–Johnson–Mehl–Avrami (KJMA) model well. The nucleation activation energy (E n ) and growth activation energy (E g ) are 429.2 and 417.2 kJ/mol, respectively. Based on the values of the Avrami exponent n, the transformation process can be divided into three different stages: Stage I, n ≈ 2.5; Stage II, 2.5 ≤ n ≤ 3; Stage III, n > 3. The whole crystallization process from interface-controlled one-dimensional growth converted into interface-controlled three-dimensional growth.

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“…Using these instruments enable in-depth study of metastability and reorganization of samples with a 1 to 1000 ng scale. In addition, FSDSC will become a crucial tool for the optimization of processing methods at high speeds like injection molding [96,97]. The first instrument to be commercially available was Flash DSC 1 (Mettler Toledo) in 2010.…”

Section: New Developments-fast-scan Dsc (Fsdsc) and Ultra-fast (Flash) Dscmentioning

confidence: 99%

Amorphous alloys and differential scanning calorimetry (DSC)

Janovszky

Svéda

Sycheva

et al. 2021

J Therm Anal Calorim

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A remarkable number of scientific papers are available in the literature about the bulk amorphous alloys and metallic glasses. Today, DSC is an essential tool for amorphous alloys research and development, and of course for quality assurance. In many cases, users seek to examine the determination of only one or two properties, although much more information can be obtained from the measurements. The research involved structural relaxation, Curie temperature, glass temperature, crystallization, phase separation, nanocrystalline volume fraction, melting point and liquidus temperature determination subjects and kinetics of microstructural transformations induced by thermal treatment. We collected and present the information that can be obtained with this technique and draws the reader’s attention to some potential problems related to data interpretation.

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Nanocrystallization kinetics of amorphous Fe73.5Cu1Nb3Si13.5B9 alloy

Cited by 18 publications

References 30 publications

Properties of Mn-doped FINEMET

Properties of Mn-doped FINEMET

The Non-Isothermal and Isothermal Crystallization Behavior and Mechanism of Fe–Ni Alloys

Amorphous alloys and differential scanning calorimetry (DSC)

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