Naslov
Impact of thickness on properties of high-entropy and conventional metallic glasses

Autori
Ristić, Ramir ; Kuršumović, Ahmed ; Figueroa, Ignacio ; Babić, Emil

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Programme and The Book of Abstracts / Uskoković, Dragan ; Radmilović, Velimir - Beograd : Materials Research Society of Serbia, 2018, 108-108

ISBN
978-86-919111-3-3

Skup
20th Annual Conference (YUCOMAT 2018)

Mjesto i datum
Herceg Novi, Crna Gora, 03.09.2018. - 07.09.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Metallic glasses, Mechanical properties, Thickness

Sažetak
Properties of metallic glasses (MG) depend sensitively on the cooling rate (thus thickness for melt-spun ribbons). We present the effect of thickness on properties of high-entropy (TiZrNbCu)100-xNix (x≤50) and conventional binary CuxTE100-x (TE = Ti or Hf, x≤70) and ternary Cu55Hf45-x(Zr, Ti)x (x≤45) glassy ribbons. Both, as-cast and relaxed (short anneal just below glass transition temperature) samples were studied. The mechanical and vibrational properties (ultrasound velocity, Young`s modulus, microhardness, Debye temperature) of as-cast alloys showed clear effect of thickness superposed on that due to composition, whereas those of relaxed samples showed little effect of thickness. Properties of relaxed samples were larger than those of corresponding as-cast alloys and in ternary Cu55 Hf45-x(Zr, Ti)x alloys the effect of relaxation was larger for x=Ti than for Zr which may indicate the interplay between α- and β-relaxations in Cu– base MGs. The effect of cooling rate on mechanical properties provides simple criterion for glass forming ability.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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