Thermodynamic calculation and experimental validation of Hf-rich glass forming compositions in Hf-Cu-Ni system

Khond, Anuj; Babu, D. Arvindha; Smaran, Sai; Deshmukh, A. A.; Majumdar, Bhaskar; Bhatt, Jatin; Srivastav, Ajeet K.

doi:10.1016/j.jnoncrysol.2018.07.070

Cited by 27 publications

(12 citation statements)

References 44 publications

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“…The obtained results are compared with Hf-Cu-Ni [9][10][11], Ti-Cu-Ni [12,13] ternary alloys, Zr-Cu-Ni-Al [14], Cu-Ni-Zr-Ti [15] quaternary alloys and Fe-Co-Hf-Zr-B-Cu [16] quinary alloys. For Hf-Cu-Ni alloy in the present work heating rate was 0.17 K s −1 as reported by Khond et al [2]. The heating rate for Hf-Cu-Ni alloys [9][10][11] was 0.67 K s −1 and for Ti-Cu-Ni [12,13] heating rate was 0.50 K s −1 .…”

Section: Introductionsupporting

confidence: 82%

“…In this paper, authors have tried to probe the compositional effect on the different GFA parameters in Hf-Cu-Ni glassy ribbons. The present system of Hf-Cu-Ni ternary alloy has already been reported by Khond et al [2] using the concept of isometric contours. In the present work, compositional effects on widely used GFA parameter such T rg [3], DT x [4], α [5], g m [6], ε [7], and g* [8] have been evaluated.…”

Section: Introductionmentioning

confidence: 52%

“…Here DH ijk c is the enthalpy of chemical mixing; detailed discussion regarding this can be found elsewhere [2] and DH ijk inter is the enthalpy of intermetallic compound formation. Here, X , i X , j and X k are the atomic content of the constituent element.…”

Section: Mondal Criteria [5]mentioning

confidence: 99%

“…This parameter was first successfully proposed by Bhatt et al [23]. Further, it was used to predict the compositions in ternary [2,[23][24][25] systems and to some extent in quaternary [26] and quinary [27] systems. Parameter P HS is the product of DH Chem and / s S k B and can be obtained by the following equation (8).…”

Section: The P Hs Parameter [23]mentioning

confidence: 99%

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Investigation of glass forming ability parameters in Hf–Cu–Ni glassy alloy

et al. 2020

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In this manuscript, the compositional dependence of glass-forming ability (GFA) parameters in Hf--Cu-Ni glassy alloy has been discussed. Effect of Hf, Cu, and Ni in Hf-Cu-Ni glass-forming alloys with different GFA parameters such as ( )for the liquidus temperature (T l ) has been obtained. It is observed that the T l values of the alloy decrease linearly as P HS approaches to a negative scale. Obtained results were compared with the available reports and are found in agreement with each other. Present paper deals with the optimization of the composition to achieve good GFA in metallic glasses.

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Section: Introductionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 52%

Section: Mondal Criteria [5]mentioning

confidence: 99%

Section: The P Hs Parameter [23]mentioning

confidence: 99%

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Investigation of glass forming ability parameters in Hf–Cu–Ni glassy alloy

et al. 2020

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“…The following references, not cited in the main body of the paper, have been cited in the supporting information: Bhatt et al (2007); Gallego et al (1990); Khond et al (2018).…”

Section: Related Literaturementioning

confidence: 99%

Local structure investigation of Co–Fe–Si–B ribbons by extended X-ray absorption fine-structure spectroscopy

Deshmukh¹,

Srivastava²,

Singh³

et al. 2021

J Synchrotron Radiat

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In the present work, extended X-ray absorption fine-structure (EXAFS) investigations of Co69Fe x Si21–x B10 (x = 3, 5, 7) glassy ribbons were performed at the Co K-edge. The magnitude of the first peak of the Fourier transforms of the EXAFS signals is found to increase monotonically with increasing Si concentrations indicating the formation of the localized ordered structure at the atomic scale. The Co–Si coordination number (CN) increases at the expense of the CN of Co/Fe. Smaller interatomic distances are observed in the glassy phase compared with that in the crystalline phase which promotes the stability of the glassy phase. Calculations of the thermodynamic parameter (P HSS), cohesive energy (E C) and the atomic radius difference (δ) parameter show that the alloy composition Co69Fe3Si18B10 has a good glass-forming ability (GFA) with the highest CN of Si compared with other compositions. A linear correlation of CN with that of the GFA parameter (P HSS) exists and the CN also plays a crucial role in the GFA of the glassy alloys. This parameter should be considered in developing different GFA criteria.

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