High temperature creep of vanadium

A. Juhász, I. Kovács, I. Vitányi

Research output: Contribution to journalArticle

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Abstract

The creep behaviour of polycrystalline vanadium of 99.7% purity has been investigated in the temperature range 790-880 °C in a high temperature microscope. It was found that the creep properties depend strongly on the history of the sample. To take this fact into account some additional properties such as the dependence of the yield stress and the microhardness on the pre-annealing treatment have also been studied. Samples used in creep measurements were selected on the basis of their microhardness. The activation energy of creep depends on the microhardness and on the creep temperature. In samples annealed at 1250 °C for one hour (HV = 160 kgf mm-2) the rate of creep is controlled by vacancy diffusion in the temperature range 820-880 °C with an activation energy of 78 ± 8 kcal mol-1.

Original languageEnglish
Pages (from-to)309-320
Number of pages12
JournalJournal of the Less-Common Metals
Volume61
Issue number2
DOIs
Publication statusPublished - 1978

Fingerprint

Vanadium
Creep
Microhardness
Temperature
Activation energy
Vacancies
Yield stress
Microscopes
Annealing

ASJC Scopus subject areas

  • Engineering(all)

Cite this

High temperature creep of vanadium. / Juhász, A.; Kovács, I.; Vitányi, I.

In: Journal of the Less-Common Metals, Vol. 61, No. 2, 1978, p. 309-320.

Research output: Contribution to journalArticle

Juhász, A. ; Kovács, I. ; Vitányi, I. / High temperature creep of vanadium. In: Journal of the Less-Common Metals. 1978 ; Vol. 61, No. 2. pp. 309-320.
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