Naslov
Mechanical and magnetic properties of Cu55Hf45-xTix metallic glasses

Autori
Ristić, Ramir ; Babić, Emil ; Pajić, Damir ; Zadro, Krešo ; Figueroa, Ignacio Alejandro ; Davies, Hywel ; Todd, Iain ; Kuršumović, Ahmed ; Stubičar, Mirko

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

Izvornik
17th International Symposium on Metastable, amorphous and Nanostructured Materials (ISMANAM 2010) : Program and Abstracts / Loffler, Jorg - Zürich : Swiss Federal Institute of Technology-ETH, 2010, 145-145

Skup
International Symposium on Metastable, amorphous and Nanostructured Materials (17 : 2010)

Mjesto i datum
Zürich, Švicarska, 04.07.2010. - 09.07.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
metallic glasses; rapid solidification; quenching; mechanical properties

Sažetak
A recent study of Cu55Hf45-xTix metallic glasses with 0 ≤ x ≤ 45 [1] revealed the formation of bulk metallic glasses (BMG) for 15 ≤ x ≤ 30. In the same composition range the ratio of the glass transition temperature Tg, and the liquidus temperature Tl, showed a shallow maximum, consistent with the highest glass forming ability (GFA). Here, we present the results for some mechanical properties (Young's modulus and microhardness) and magnetic properties (magnetic susceptibility) of these alloys and compare their variation with x with those for Tg and the crystallization temperature Tx. All measured properties show monotonic variations with x with no particular features in the composition range for BMG formation. This is similar to the behaviour observed for binary CuxHf1-x and CuxZr1-x glassy alloys [2]. However, in the binary alloys, the elastic stiffness and the thermal stability (Tx) followed the same trend, whereas in the ternary alloys an increase in stiffness is accompanied by a decrease in thermal stability. Also, in these ternary alloys the increase of magnetic susceptibility with x is accompanied by increased stiffness, whereas, in binary alloys, they follow the opposite trend. The possible origins of the observed behaviour are briefly discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA