Structural characterization of iron-based bulk metallic glass alloys produced by centrifugal casting

Date

2003-05-01

Author

PEHLIVANOGLU, MK
Akdeniz, Mahmut Vedat
BOR, A Sakir

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

200
views

0
downloads

In this study bulk metallic glass alloys in the Fe-Zr-B-M (M=Al, Co, Cu, Mo, Ni, W) systemwere produced by using a centrifugal casting method. The thickness ofthe samples that could be produced with an almost completely amorphousstructure was found to be as high as similar to2 mm for alloy Fe60Co8Zr10Mo5W2B15. Alloying element additions or replacements have resulted in a considerable effect on glass-forming ability. Among others, Al and Cu were found to have the most deteriorative effects. The ternary alloy Fe70Zr10B20, from which bulk metallic glass alloys can be formed by cleverly implementing several alloying elements, was seen to have a different phase transformation behavior when compared to alloy Fe60Co8Zr10Mo5W2B15. For the latter alloy, the phase transformation process and microstructure evolution were found to be extremely sensitive to variation of the cooling rate.

Subject Keywords

Bulk metallic glass, Glass-forming ability, Iron-based alloy, Conventional casting method, Phase transformation

URI

https://hdl.handle.net/11511/33388

Journal

CHEMICAL ENGINEERING COMMUNICATIONS

DOI

https://doi.org/10.1080/00986440390207512

Collections

Department of Metallurgical and Materials Engineering, Article

Suggestions

OpenMETU
Core

Glass Forming Ability and Magnetic Properties of Fe36Ni36B19.2Si4.8Nb4-xMx (M = Cu, Zr, Ti, Y, Pt) Bulk Glassy Alloys Fabricated by Suction Casting Kirimli, Handan Engin; Sarlar, Kagan; Konuk, A. Oguz; DUMAN, Nagehan; Akdeniz, Mahmut Vedat; Kucuk, Ilker (2013-05-01) In this study, the effects of Cu, Zr, Ti, Y, Pt substitution for Nb additions on the stability and magnetic properties of Fe-Ni-based bulk metallic glass (BMG) alloys fabricated by the suction casting method are investigated. The saturation magnetization (J(s)) and coercivity (H-c) for as-cast Fe36Ni36B19.2Si4.8Nb4-xMx (M = Cu, Ti) BMG alloys were in the range of 0.51 T-0.55 T and 76-779 A/m, respectively. Differential scanning calorimetry curves show that the Fe36Ni36B19.2Si4.8Nb4-xMx (M = Cu, Ti) bulk met...
Structural characteristics of thermally evaporated Cu0.5Ag0.5InSe2 thin films Gullu, H. H.; Parlak, Mehmet (2016-05-01) In this work, Cu0.5Ag0.5InSe2 (CAIS) thin film samples were prepared by thermal evaporation of Cu, Ag, InSe and Se evaporants sequentially on glass substrates. Following the deposition, annealing processes were applied at different temperatures. The as-grown and annealed CAIS samples were nearly stoichiometric in the detection limit of the compositional measurement. The x-ray diffraction (XRD) measurements revealed that they were in polycrystalline structure with a preferred orientation along the (112) dire...
Structural, electrochemical and optical comparisons of tungsten oxide coatings derived from tungsten powder-based sols Isik, Dilek; AK, METİN; Durucan, Caner (Elsevier BV, 2009-11-02) Tungsten trioxide (WO3) electrochromic coatings have been formed on indium tin oxide-coated glass substrates by aqueous routes. Coating sols are obtained by dissolving tungsten powder in acetylated (APTA) or plain peroxotungstic acid (PTA) solutions. The structural evolution and electrochromic performance of the coatings as a function of calcination temperature (250 degrees C and 400 degrees C) have been reported. Differential scanning calorimetry and X-ray diffraction have shown that amorphous WO3 films ar...
Mechanical properties and surface energies of low density polyethylene poly(vinyl chloride) blends Akovali, G; Torun, TT; Bayramlı, Erdal; Erinc, HK (1998-03-01) A series of blends of poly(vinyl chloride) (PVC) and low density polyethylene (LDPE) are prepared and examined. Plasma treatment is applied to one of the components (LDPE) in order to affect the degree of compatibility. For this purpose, different monomers, such as carbon tetrachloride and vinyl chloride, are used. Tensile test results for all the blend samples, with and without plasma-treated LDPE, are compared. The surface energy results of blends prepared from untreated and treated LDPE-PVC showed consid...
Calculation of the Thermodynamic Quantities for Cubic Gauche Nitrogen (cg-N) Yurtseven, Hasan Hamit; Akay, O. (2022-01-01) This work aims to investigate the thermodynamic properties of the cubic gauge nitrogen (cg-N) by calculating the relevant thermodynamic quantities as a functions of temperature and pressure. The thermodynamic quantities of volume (V), thermal expansion (alpha p), isothermal compressibility (kappa T), bulk modulus(B), and the heat capacity (Cp) are calculated as a function of temperature at constants pressures (0, 35, 125, 250 GPa) for the cg-N structure. Also, the pressure dependences of V, kappa T, alpha p...

Citation Formats

M. PEHLIVANOGLU, M. V. Akdeniz, and A. S. BOR, “Structural characterization of iron-based bulk metallic glass alloys produced by centrifugal casting,” CHEMICAL ENGINEERING COMMUNICATIONS, pp. 925–935, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33388.