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- Title:
- Anelastic relaxation due to interstitial solutes diffusion in Nb and Nb-1 wt% Zr
- Universidade Federal de São Carlos (UFSCar)
- Universidade Estadual Paulista (UNESP)
- 1012-0386
- Metals and alloys containing solute atoms dissolved interstitially often show anelastic behavior due to a process know as stress-induced ordering. The application of mechanical spectroscopy measurements to diffusion studies in body-centered cubic metals has been extensively used in the last decades. However the kind of preferential occupation of interstitial solutes in body-centered cubic metals is still controversial. The anelastic properties of the Nb and Nb-1 wt% Zr polycrystalline alloys were determined by internal friction and oscillation frequency measurements using a torsion pendulum inverted performed between 300K and 650K, operating in a frequency oscillation in the hertz bandwidth. The interstitial diffusion coefficients of oxygen and nitrogen in Nb and Nb-1 wt% Zr samples were determined at two distinct conditions: (a) for low concentration of oxygen and (b) for high concentration of oxygen.
- 1-Dec-2006
- Defect and Diffusion Forum, v. 258-260, p. 137-145.
- 137-145
- Internal friction
- Interstitial diffusion
- Nb
- Nb-Zr alloys
- Nitrogen
- Oxygen
- Anelastic behavior
- Body-centered cubic metals
- Stress-induced ordering
- Bandwidth
- Niobium compounds
- Physical properties
- Relaxation processes
- Spectroscopic analysis
- Diffusion in solids
- http://dx.doi.org/10.4028/www.scientific.net/DDF.258-260.137
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/69303
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