Pregled bibliografske jedinice broj: 478016
Simple correlation between mechanical and thermal properties in TE-TL (TE=Ti, Zr, Hf ; TL=Ni, Cu) amorphous alloys
Simple correlation between mechanical and thermal properties in TE-TL (TE=Ti, Zr, Hf ; TL=Ni, Cu) amorphous alloys // 17th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2010) : Program and Abstracts / Loffler, Jorg (ur.).
Zürich: Swiss Federal Institute of Technology ETH, 2010. str. 228-228 (poster, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Simple correlation between mechanical and thermal properties in TE-TL (TE=Ti, Zr, Hf ; TL=Ni, Cu) amorphous alloys
Autori
Ristić, Ramir ; Babić, Emil ; Kuršumović, Ahmed ; Stubičar, Mirko ; Cooper, John Robert ; Figueroa, Ignacio Alejandro ; Davies, Hywel ; Todd, Iain ; Varga, Lajos Karoly ; Bakony, Imre
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, 228-228
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
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.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
035-0352827-2841 - Materijali sa elektronskom strukturom modeliranom modernim tehnikama priprave (Aviani, Ivica, MZOS ) ( CroRIS)
119-1191458-1019 - Elektromagnetska svojstva nanostrukturiranih materijala (Babić, Emil, MZOS ) ( CroRIS)
152-1201833-1471 - Utjecaj duplex postupka na strukturu čelika i inženjerstvo površina (Krumes, Dragomir, MZOS ) ( CroRIS)
Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb,
Strojarski fakultet, Slavonski Brod
