Features of modification of amorphous metallic alloys by oligomeric coatings

For many years amorphous metallic alloys have been prepared by rapid quenching techniques such as vapor condensation or melt quenching. Recently, solid-state reactions have shown to be an alternative for synthesizing amorphous metallic alloys. While solid-state amorphization by ball milling and high energy particle irradiation have been investigated extensively, the growth of amorphous phase by cold-rolling has been limited. This paper presents a morphological and structural study of amorphization of Cu and Ti foils by rolling.Samples of high purity Cu (99.999%) and Ti (99.99%) foils with a thickness of 0.025 mm were used as starting materials. These thin foils were cut to 5 cm (w) × 10 cm (1), and the surface was cleaned with acetone. A total of twenty alternatively stacked Cu and Ti foils were then rolled. Composite layers following each rolling pass were cleaned with acetone, cut into half and stacked together, and then rolled again.

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Effect of the atomic size distribution on glass forming ability of amorphous metallic alloys

Materials Research Bulletin ◽

10.1016/s0025-5408(01)00715-2 ◽

2001 ◽

Vol 36 (12) ◽

pp. 2183-2198 ◽

Cited By ~ 334

Author(s):

O.N. Senkov ◽

D.B. Miracle

Keyword(s):

Size Distribution ◽

Glass Forming Ability ◽

Metallic Alloys ◽

Atomic Size ◽

Amorphous Metallic Alloys ◽

Glass Forming

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Multicycle electroimpulse fatigue of amorphous metallic alloys

Journal of Physics Conference Series ◽

10.1088/1742-6596/1115/5/052016 ◽

2018 ◽

Vol 1115 ◽

pp. 052016

Author(s):

V A Fedorov ◽

T N Pluzhnikova ◽

A D Berezner

Keyword(s):

Metallic Alloys ◽

Amorphous Metallic Alloys

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Radiation Effects in Amorphous Metallic Alloys as Revealed by Mössbauer Spectrometry: Part II. Ion Irradiation

Metals ◽

10.3390/met11081309 ◽

2021 ◽

Vol 11 (8) ◽

pp. 1309

Author(s):

Marcel Miglierini

Keyword(s):

Heavy Ions ◽

Radiation Effects ◽

Ion Irradiation ◽

Active Regions ◽

Mössbauer Spectrometry ◽

Metallic Alloys ◽

Conversion Electrons ◽

Amorphous Metallic Alloys ◽

Mossbauer Spectrometry ◽

Light Ions

Due to their excellent magnetic properties, amorphous metallic alloys (AMAs) are considered for the construction of magnetic cores of radio-frequency cavities in accelerators. Here, they might be exposed to ion bombardment. The influence of irradiation by both light and heavy ions featuring low and high energies, respectively, is followed by the techniques of 57Fe Mössbauer spectrometry. Modifications of surface layers in selected Fe-containing AMAs after ion irradiation are unveiled by detection of conversion electrons and photons of characteristic radiation whereas those in their bulk are derived from standard transmission spectra. Rearrangement of microstructure which favors the formation of magnetically active regions, is observed in surface regions bombarded by light ions. Heavy ions caused pronounced effects in the orientation of net magnetization of the irradiated samples. No measurable impact upon short-range order arrangement was observed. Part I of this paper is devoted to radiation effects in Fe-based AMAs induced by neutron irradiation.

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