Paper Title:
Anelastic Relaxation due to Interstitial Solutes Diffusion in Nb and Nb-1 wt% Zr
  Abstract

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 bodycentered 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.

  Info
Periodical
Defect and Diffusion Forum (Volumes 258-260)
Edited by
Andreas Öchsner and José Grácio
Pages
137-145
DOI
10.4028/www.scientific.net/DDF.258-260.137
Citation
O. Florêncio, P. S. Silva, C. R. Grandini, "Anelastic Relaxation due to Interstitial Solutes Diffusion in Nb and Nb-1 wt% Zr", Defect and Diffusion Forum, Vols. 258-260, pp. 137-145, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Odila Florêncio, Geovani F. Barbosa, Paulo Sergio Silva, Tomaz Toshimi Ishikawa, Durval Rodrigues
Abstract:Anelastic relaxation measurements have been used in order to obtain information about several aspects of the behavior of solutes in metals,...
146
Authors: Odila Florêncio, Paulo Sergio Silva, Geovani F. Barbosa, Fábio X. Melo, Carlos Roberto Grandini, Tomaz Toshimi Ishikawa
Abstract:Interstitial solutes in body-centered cubic metals, such as oxygen in tantalum, produce ideally Snoek effects when they are in solutions...
239
Authors: Armando Cirilo Souza, Carlos Roberto Grandini, Odila Florêncio
Abstract:The scientific and technological development in the area of new materials contributed to several applications of niobium and its alloys in...
261
Authors: Odila Florêncio, Paulo Sergio Silva, Carlos Roberto Grandini
Abstract:The short-range diffusion phenomenon (Snoek Effect) was investigated by mechanical spectroscopy measurements between 300 K and 650 K, in a...
1346
Authors: Carlos Roberto Grandini, Odila Florêncio, Walter José Botta Filho
Chapter 3: Point Defect Relaxations and Diffusion
Abstract:Anelastic relaxation measurements were performed in a Nb-46wt%Ti alloy, in the temperature range of 300 to 700 K, using a torsion pendulum...
92