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Regularities of Formation and Destruction of Molybdenum-Tungsten Alloy under High-temperature Replated Static Loading (CROSBI ID 498964)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Bukhanovskii, V. ; Mamuzić, Ilija ; Kravchenko, V. Regularities of Formation and Destruction of Molybdenum-Tungsten Alloy under High-temperature Replated Static Loading // Materials and Metallurgy, Summaries of Lectures / Mamuzić, Ilija (ur.). Zagreb: Hrvatsko metalurško društvo, 2004. str. 219-219-x

Podaci o odgovornosti

Bukhanovskii, V. ; Mamuzić, Ilija ; Kravchenko, V.

engleski

Regularities of Formation and Destruction of Molybdenum-Tungsten Alloy under High-temperature Replated Static Loading

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.

characteristic; low-cycle strength; cyclic creep; molybdenum-tungsten alloy

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Podaci o prilogu

219-219-x.

2004.

objavljeno

Podaci o matičnoj publikaciji

Materials and Metallurgy, Summaries of Lectures

Mamuzić, Ilija

Zagreb: Hrvatsko metalurško društvo

Podaci o skupu

6. Međunarodni simpozij Hrvatskog metalurškog društva, SHMD 2004 : materijali i metalurgija

poster

20.06.2004-24.06.2004

Šibenik, Hrvatska

Povezanost rada

Metalurgija