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Pregled bibliografske jedinice broj: 158774

Zbornik radova

Autori: Bukhanovskii, V.; Mamuzić, Ilija; Kravchenko, V.
Naslov: Regularities of Formation and Destruction of Molybdenum-Tungsten Alloy under High-temperature Replated Static Loading
( Regularities of Formation and Destruction of Molybdenum-Tungsten Alloy under High-temperature Replated Static Loading )
Izvornik: Materials and Metallurgy, Summaries of Lectures / Mamuzić, Ilija (ur.). - Zagreb : Hrvatsko metalurško društvo , 2004. 219-219.
Skup: 6. Međunarodni simpozij Hrvatskog metalurškog društva, SHMD 2004, Materijali i metalurgija
Mjesto i datum: Šibenik, Hrvatska, 20-24.07.2004.
Ključne riječi: characteristic; low-cycle strength; cyclic creep; molybdenum-tungsten alloy
( characteristic; low-cycle strength; cyclic creep; molybdenum-tungsten alloy )
Sažetak:
The paper presents the investigation of the characteristic of low-cycle strength and cyclic creep of molybdenum-tungsten alloy of the Mo-30%-W-NbC-C system prepared by the powder metallurgy methods at 1770, 2020 and 2270 K. In the temperature range studied, the authors obtained a unified dependence of the stady-state cyclic creep rate on the ratio of the equivalent stress to the material yield strength at the corresponding temperature and a generalized curve of low-cycle strength for the alloy. They have shown that cyclic load application accelerates the processes of oriented plastic deformation and fracture of the alloy by 1, 5 to 7 times as compared to long-term loading, with the qualitative similarity of cyclic and static creep curves. The results of the investigation of structural changes and destruction for molybdenum-tungsten alloy of the Mo-30%-W-NbC-C are presented. It has been shown that fracture of the alloy under high temperature occurs due to proceeding the critical stage of polygonization.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 0124001
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Metalurgija



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