ISSN 2594-5327
42º Congresso anual — Vol. 42, Num. 1 (1987)
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Resumo
The difficulties to obtain adequate single crystals of Nb-Zr and Nb-ZrO₂ alloys for deformation studies are discussed. Low-temperature internal oxidation of Nb-Zr alloys followed by ageing at higher temperatures resulted in the precipitation of ZrO₂ particles. However, the effect of this treatment on the particle size and distribution and on the crystallographic structure of the particle was not completely understood. Compression tests in the temperature range 4.2K to 373K showed a small effect of zirconia particles on the mechanical properties of Nb-Zr solid solutions and a significant effect of the amount of oxygen remaining in solid solution after the oxidation treatment.
Palavras-chave
Nb-Zr, Nb-ZrO₂, Single crystals, Precipitation, Deformation, Zirconia, Internal oxidation, Mechanical properties
Como citar
Filho, Walter José Botta; Christian, John Wyrill; Taylor, Glyn.
The Preparation and Testing of Nb-Zr and Nb-ZrO₂ Single Crystals for Deformation Studies,
p. 63-78.
In: 42º Congresso anual,
Salvador, Brasil,
1987.
ISSN: 2594-5327, DOI 10.5151/2594-5327-1987-42-v1-69-84
