Anelastic relaxation due to interstitial solutes diffusion in Nb and Nb-1 wt% Zr
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/2006
|
Resumo |
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. |
Formato |
137-145 |
Identificador |
http://dx.doi.org/10.4028/www.scientific.net/DDF.258-260.137 Defect and Diffusion Forum, v. 258-260, p. 137-145. 1012-0386 http://hdl.handle.net/11449/69303 10.4028/www.scientific.net/DDF.258-260.137 2-s2.0-33847279773 |
Idioma(s) |
eng |
Relação |
Defect and Diffusion Forum |
Direitos |
closedAccess |
Palavras-Chave | #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 |
Tipo |
info:eu-repo/semantics/conferencePaper |