Internal Friction Study of Nitrogen-Hydrogen and Nitrogen-Deuterium Pair in Tantalum

Ebata, Takashi; Hanada, R.; Kimura, Hiroshi

doi:10.2320/jinstmet1952.55.1_29

Cited by 8 publications

(5 citation statements)

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“…The energies of strain-induced interaction of interstitial atoms were used for the calculation of the peak temperature, max T , of hydrogen-induced internal friction peaks. It is known that the 'hydrogen Snoek-type maximum' is caused by the diffusion under stress of H or D atoms near immobile O or N atoms [72][73][74][75][76][77][78]. Therefore for such calculations one needs values for the energies of H-H(D-D) and H(D)-O(N) interaction.…”

Section: Hydrogen Internal Friction Peak In Nb and Ta [62]mentioning

confidence: 99%

“…Nb-H [73,74] 106 [74,75] 77 [73] 60 [76] 50 [77] 126 [78] The Effect of Plastic Deformation on the Carbon Internal Friction Peak in Austenitic Steels [80] The mechanical response resulting from the dynamic redistribution of interstitial impurity atoms in austenitic steels under an applied external harmonic stress field is a mechanical loss peak (internal friction peak) which occurs at around 525-575 K (at frequency » f 1 Hz) [80]. The peak was first observed by Finkelshtein and Rosin and is now known in the literature as the Finkelshtein-Rosin (FR) peak [81].…”

Section: Alloysmentioning

confidence: 99%

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Strain-Induced Interaction of Dissolved Atoms and Mechanical Relaxation in Solid Solutions. A Review

Blanter

Magalas²

2003

SSP

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The interaction of dissolved atoms affects the arrangement and energies of the atoms and the asymmetry of the distortion field around a dissolved atom and thereby influences the relaxation processes in solid solutions. This review describes the strain-induced model of atom interaction along with selected examples of the model's applications for analysis of the connection between dissolved atom interaction and peculiarities of mechanical relaxations in interstitial and interstitialsubstitutional solid solutions. The strain-induced interaction is long-range, oscillating, anisotropic, and, in some solid solutions, very strong. In all the investigated cases some coordination shells show attraction. The dependence on distance is determined mainly by the type of crystal lattice; for one type of crystal lattice the dependence is determined by the type of interstitials. The energies of interstitial-interstitial (i-i), interstitial-substitutional (i-s) and substitutional-substitutional (s-s) interaction are calculated for many bcc and fcc metal solid solutions. It is found that a straininduced interaction must be supplemented by a short-range screened Coulomb repulsion in the case of i-i interaction and by a short-range 'chemical' interaction in the case of i-s interaction.The model was previously used in the analysis of: (1) the Cr concentration dependence of the carbon Snoek peak temperature in Fe-Cr-C alloys; (2) the influence of Al ordering on the carbon Snoek peak in -Fe; (3) the effect of plastic deformation on the Finkelstein-Rosin carbon peak in austenitic steels; and (4) the calculation of hydrogen internal friction peaks in Nb and Ta. It is demonstrated that the described model can explain many peculiarities of mechanical relaxations in interstitial solid solutions as observed by internal friction (mechanical spectroscopy).

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Section: Hydrogen Internal Friction Peak In Nb and Ta [62]mentioning

confidence: 99%

Section: Alloysmentioning

confidence: 99%

Strain-Induced Interaction of Dissolved Atoms and Mechanical Relaxation in Solid Solutions. A Review

Blanter

Magalas²

2003

SSP

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“…It is known that the hydrogen Snoek-type maximum is caused by the diffusion under stress of H or D atoms near the immobile O or N atoms [28][29][30][31][32][33][34]. Therefore for such calculations one needs the values for the H-H(D-D) and H(D)-O(N) interaction energies.…”

Section: Hydrogen Internal Friction Peak In Nb and Ta [12]mentioning

confidence: 99%

“…It was shown that the H-H repulsion for V, Nb and Ta [9] and H-N repulsion for Nb and Ta [9,26] extend up to three coordination shells. Behavior of the hydrogen atoms in Table 2 Comparison of calculated and experimental temperatures of internal friction peaks [12] Alloys (K) 50 [28] 79 [29,30] 106 [30,31] 77 [29] 60 [32] 50 [33] 126 [34] a solid solution is determined both by a repulsion distance and elastic interaction energies outside the radius of repulsion. Computer simulation of the temperature dependence of hydrogen diffusion in Pd, Cu, and Ni with a low hydrogen concentration of 0.11 at.% [9] showed that such additional repulsion is absent.…”

Section: Applicability Limitations Of the Strain-induced Interaction mentioning

confidence: 99%

Hydrogen interaction with dissolved atoms in metal solid solutions

Blanter

Granovskiy²,

Magalas

2005

Journal of Alloys and Compounds

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“…,K 50 [47] 79 [48,49] 106 [31,49] 77 [48] 60 [9] 50 [8] 126 [7] The Hydrogen Influence Upon Oxygen Snoek Relaxation in Nb [5] In the previous example we discussed the situation when practically immobile 'heavy' interstitial atoms (O, N) influence on Snoek-type hydrogen relaxation in Nb and Ta. In this case the mechanical relaxation spectra could be explained from the viewpoint of (O,N)-(H,D) interatomic pair interactions.…”

mentioning

confidence: 99%

Hydrogen Interaction with Dissolved Atoms and Relaxation Properties of Metal Solid Solutions

Blanter

Magalas²

2006

SSP

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The H(D) atom’s interaction with one another, ‘heavy’ interstitial atoms (O, N, C), and substitutional atoms is analyzed on the basis of strain-induced (elastic) interaction. The interaction energies are calculated for bcc, fcc, and hcp metal solid solutions with regard to the discrete atomic structure of the host lattice. The elastic constants, Born-von Karman constants of the host lattice, and concentration expansion coefficients of the solid solution lattice due to solute atoms, are used as the parameters for numerical input. It is shown that the interaction is long-range, oscillating, and anisotropic. In all cases, the coordination shells of both types - with attraction and with repulsion - exist. The interaction energy dependence on the distance is due mainly to the crystal lattice type. The strain-induced interaction should be supplemented by repulsion in the nearest coordination shells for the case of interstitial-interstitial interaction and by chemical interaction in the case of H-substitutional interaction. Two examples are given for the use of the strain-induced interaction energies in calculations relaxation processes.

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Internal Friction Study of Nitrogen-Hydrogen and Nitrogen-Deuterium Pair in Tantalum

Cited by 8 publications

References 0 publications

Strain-Induced Interaction of Dissolved Atoms and Mechanical Relaxation in Solid Solutions. A Review

Strain-Induced Interaction of Dissolved Atoms and Mechanical Relaxation in Solid Solutions. A Review

Hydrogen interaction with dissolved atoms in metal solid solutions

Hydrogen Interaction with Dissolved Atoms and Relaxation Properties of Metal Solid Solutions

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