Effect of (Mo, W) substitution for Nb on glass forming ability and magnetic properties of Fe–Co-based bulk amorphous alloys fabricated by centrifugal casting

Küçük, İlker; Aykol, Muratahan; Uzun, Orhan; Yildirim, Mehmet; Kabaer, Mehmet; Duman, Nagehan; Yılmaz, Fikret; Erturk, K.; Akdeniz, M. Vedat; Mekhrabov, Amdulla O.

doi:10.1016/j.jallcom.2010.11.011

Cited by 26 publications

(14 citation statements)

References 8 publications

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“…Additionally, minor additions of some selected elements have played an important role in enhancing the GFA and thermal stability of metallic glasses since the birth of BMGs [13][14][15][16]. Hence, large efforts have been devoted to choose the minor addition elements based on the above considerations.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, addition of transition metals has been useful to develop new Fe-based BMGs with high GFA at low cost. Among transition metals, Pang et al [31] studied the effect of the addition of niobium and tantalum on the GFA and corrosion resistance of melt-spun Fe 45 Cr 16 Mo 16 C 18 B 8 alloys, and found that the addition of these elements enhances both properties. It has also been reported that the addition of niobium in the Fe 65 Mn 13 B 17 Y 5 alloy [30] improves the GFA achieving a fully amorphous rod of 2 mm Ø. Herein, it is reasonable to believe that niobium has an effective role in the glass formation of Fe-based alloys.…”

Section: Introductionmentioning

confidence: 99%

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Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Zhai

Pineda

Duarte

et al. 2014

Journal of Alloys and Compounds

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Abstract:A new Fe-based bulk metallic glass with superior glass forming ability, Fe 46 Cr 15 Mo 14 C 15 B 6 Nb 4 , was developed based on the Fe-Cr-Mo-C-B alloy system by minor addition of niobium. The effects of niobium addition on glass formation of the Fe 50-x Cr 15 Mo 14 C 15 B 6 Nb x (x=0, 2, 4 and 6 at.%) alloys were investigated. The optimum addition content of niobium was determined as 4 at.% by X-ray diffraction and differential scanning calorimeter analysis. A fully amorphous rod sample with 3 mm in diameter was produced by using commercial-grade raw materials and a copper mold casting technique. This alloy shows an ultimate compressive strength of 1920 MPa and Vickers hardness 1360 HV, which is two to three times that of conventional high strength steel and suggests a promising potential for applications combining outstanding corrosion and wear resistance properties. The crystallization kinetics studies found that the activation energies for glass transition, onset of crystallization and crystallization peak were higher than those of other reported Fe-based bulk metallic glasses. The value of the fragility parameter m for the Fe 46 Cr 15 Mo 14 C 15 B 6 Nb 4 alloy was calculated to be 34, indicating that the Fe-Cr-Mo-C-B-Nb alloy system is a strong glass former according to the Angell's classification scheme. It is inferred that 2 the more sequential change in the atomic size, the generation of new atomic pairs with large negative heats of mixing and the amount of oxygen in the molten liquid neutralized into niobium oxides provide a synergetic effect for the remarkably improved glass-forming ability and thermal stability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Zhai

Pineda

Duarte

et al. 2014

Journal of Alloys and Compounds

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“…Since the rst discovery of the ferromagnetic Fe-based metallic glasses in 1995, much eort has been devoted to the development of ferromagnetic bulk metallic glasses (BMGs) for both fundamental research and industrial applications [1]. Nowadays usually magnetic metallic glasses are produced in the shape of lms, ribbons and wires with a small size in a least one dimension [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays usually magnetic metallic glasses are produced in the shape of lms, ribbons and wires with a small size in a least one dimension [1,2]. Among them, ribbons and lms are frequently used for microelectronics and sensor applications [3,4].…”

Section: Introductionmentioning

confidence: 99%

Coating Effect on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₃W₁Amorphous Ribbons

et al. 2014

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In this research, the electrodeposition technique was employed to prepare ne-grained nickel, iron and iron--cobalt coatings with 1 µm thicknesses on the substrate of the Fe36Co36B19.2Si4.8Mo3W1 amorphous ribbons. The coating eect on magnetic properties was examined at room temperature using an ADE Magnetics EV9 vibrating sample magnetometer with maximum magnetic eld strength of 1750 kA/m. It is found that Ni, Fe, and FeCo coated amorphous ribbons show 0.60, 0.71, and 1.01 T saturation magnetization, respectively, while uncoated ribbon has 1.55 T.

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“…Amorphous magnetic alloys have been the subject of large interest because of their excellent magnetic properties [1][2][3][4]. Magnetic ribbons and wires are used in many areas.…”

Section: Introductionmentioning

confidence: 99%

Effect of Thickness on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₂W₂Thin Film Prepared by Thermionic Vacuum Arc

et al. 2012

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Fe 36 Co 36 B 19.2 Si 4.8 Mo 2 W 2 amorphous thin films have been produced by thermionic vacuum arc with thickness varying from 200 nm to 260 nm. X-ray diffraction has been employed to reveal a predominant amorphous phase in the as-prepared samples, although a small crystalline fraction cannot be excluded. The bulk magnetic properties of thin films were examined at room temperature using an ADE Magnetics EV9 vibrating sample magnetometer with maximum magnetic field strength of 1750 kA/m, real-time field control and dynamic gauss range capable of reaching a resolution of 0.08 A/m at low fields. The minimum value of the coercivity for the as-prepared samples was about 7 kA/m.

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Effect of (Mo, W) substitution for Nb on glass forming ability and magnetic properties of Fe–Co-based bulk amorphous alloys fabricated by centrifugal casting

Cited by 26 publications

References 8 publications

Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Coating Effect on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₃W₁Amorphous Ribbons

Effect of Thickness on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₂W₂Thin Film Prepared by Thermionic Vacuum Arc

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Effect of (Mo, W) substitution for Nb on glass forming ability and magnetic properties of Fe–Co-based bulk amorphous alloys fabricated by centrifugal casting

Cited by 26 publications

References 8 publications

Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Role of Nb in glass formation of Fe–Cr–Mo–C–B–Nb BMGs

Coating Effect on Magnetic Properties of Fe36Co36B19.2Si4.8Mo3W1Amorphous Ribbons

Effect of Thickness on Magnetic Properties of Fe36Co36B19.2Si4.8Mo2W2Thin Film Prepared by Thermionic Vacuum Arc

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Product

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Coating Effect on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₃W₁Amorphous Ribbons

Effect of Thickness on Magnetic Properties of Fe₃₆Co₃₆B_19.2Si_4.8Mo₂W₂Thin Film Prepared by Thermionic Vacuum Arc