Simple correlation between mechanical and thermal properties in TE-TL (TE=Ti, Zr, Hf ; TL=Ni, Cu) amorphous alloys (CROSBI ID 565066)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Ristić, Ramir ; Babić, Emil ; Kuršumović, Ahmed ; Stubičar, Mirko ; Cooper, John Robert ; Figueroa, Ignacio Alejandro ; Davies, Hywel ; Todd, Iain ; Varga, Lajos Karoly ; Bakony, Imre
engleski
Simple correlation between mechanical and thermal properties in TE-TL (TE=Ti, Zr, Hf ; TL=Ni, Cu) amorphous alloys
It was shown recently [1] that mechanical properties (stiffness and hardness) of Zr-TL amorphous alloys (TL = Ni, Cu) increase approximately linearly with TL content over a wide composition range (x(TL) ≤ 65 at%). This correlated with the increase in the Debye temperatures and thermal stability (e.g. the crystallization and glass transition temperatures) with x and showed that the strength of interatomic bonding in these alloys increases with x. Here, we provide new data for the Young, s modulus, microhardness, Debye temperatures and crystallization temperatures for several Ti-TL and Hf-TL amorphous alloys covering wide composition ranges. These data, combined with published data in the literature, show, qualitatively, the same behaviour as that previously observed for Zr-TL alloys [1]. Thus, the strength of interatomic bonding in all TE-TL amorphous alloys (TE = Ti, Zr, Hf) increases with x for x ≤ 65. The correlation between mechanical properties and thermal stability is discussed in terms of recent models for glass forming ability. The observed approximately linear variation of mechanical and thermal parameters with x enables one to estimate these parameters for pure amorphous TEs. Since, in amorphous TE-TL alloys the electronic density of states at the Fermi level decreases linearly with x [2], a very simple relationship exists between the electronic structure and mechanical and thermal properties.
metallic glasses; rapid-solidification; quenching; mechanical properties
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
228-228.
2010.
objavljeno
Podaci o matičnoj publikaciji
17th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2010) : Program and Abstracts
Loffler, Jorg
Zürich: Swiss Federal Institute of Technology ETH
Podaci o skupu
International Symposium on Metastable, Amorphous and Nanostructured Materials (17 ; 2010)
poster
04.07.2010-09.07.2010
Zürich, Švicarska