Development of the Double Amplitude Internal Friction Peaks in Cold‐Worked Aluminium–Magnesium Solid Solutions

Q. Tan; T. S. KÊC (Tingsui Ge)

doi:10.1002/pssa.2211260206

Development of the Double Amplitude Internal Friction Peaks in Cold‐Worked Aluminium–Magnesium Solid Solutions

Q. Tan^*, T. S. KÊC (Tingsui Ge)

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Previous works show that two internal friction peaks versus strain amplitude appear around room temperature in cold‐worked and partially annealed dilute solid solutions of AlMg. The lower amplitude peak (LAP) and the higher amplitude peak (HAP) are ascribed to longitudinal core diffusion (LCD) and transverse core diffusion (TCD), respectively of the solute atoms during the to and fro sidewise motion of the dislocation kinks. Further studies are made on the effect of annealing, ageing, and deformation on the development of such double amplitude internal friction peaks and their correlation with the double temperature internal friction peaks (P1′ and P1″). It is suggested that a comprehensive theoretical treatment of these experimental results in terms of the kink model in combination with the mathematical formulation developed for the string model is desirable.

Original language	English
Pages (from-to)	345-354
Number of pages	10
Journal	physica status solidi (a)
Volume	126
Issue number	2
DOIs	https://doi.org/10.1002/pssa.2211260206
State	Published - 16 Aug 1991
Externally published	Yes

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title = "Development of the Double Amplitude Internal Friction Peaks in Cold‐Worked Aluminium–Magnesium Solid Solutions",

abstract = "Previous works show that two internal friction peaks versus strain amplitude appear around room temperature in cold‐worked and partially annealed dilute solid solutions of AlMg. The lower amplitude peak (LAP) and the higher amplitude peak (HAP) are ascribed to longitudinal core diffusion (LCD) and transverse core diffusion (TCD), respectively of the solute atoms during the to and fro sidewise motion of the dislocation kinks. Further studies are made on the effect of annealing, ageing, and deformation on the development of such double amplitude internal friction peaks and their correlation with the double temperature internal friction peaks (P1′ and P1″). It is suggested that a comprehensive theoretical treatment of these experimental results in terms of the kink model in combination with the mathematical formulation developed for the string model is desirable.",

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AU - Tan, Q.

AU - KÊC (Tingsui Ge), T. S.

PY - 1991/8/16

Y1 - 1991/8/16

N2 - Previous works show that two internal friction peaks versus strain amplitude appear around room temperature in cold‐worked and partially annealed dilute solid solutions of AlMg. The lower amplitude peak (LAP) and the higher amplitude peak (HAP) are ascribed to longitudinal core diffusion (LCD) and transverse core diffusion (TCD), respectively of the solute atoms during the to and fro sidewise motion of the dislocation kinks. Further studies are made on the effect of annealing, ageing, and deformation on the development of such double amplitude internal friction peaks and their correlation with the double temperature internal friction peaks (P1′ and P1″). It is suggested that a comprehensive theoretical treatment of these experimental results in terms of the kink model in combination with the mathematical formulation developed for the string model is desirable.

AB - Previous works show that two internal friction peaks versus strain amplitude appear around room temperature in cold‐worked and partially annealed dilute solid solutions of AlMg. The lower amplitude peak (LAP) and the higher amplitude peak (HAP) are ascribed to longitudinal core diffusion (LCD) and transverse core diffusion (TCD), respectively of the solute atoms during the to and fro sidewise motion of the dislocation kinks. Further studies are made on the effect of annealing, ageing, and deformation on the development of such double amplitude internal friction peaks and their correlation with the double temperature internal friction peaks (P1′ and P1″). It is suggested that a comprehensive theoretical treatment of these experimental results in terms of the kink model in combination with the mathematical formulation developed for the string model is desirable.

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Development of the Double Amplitude Internal Friction Peaks in Cold‐Worked Aluminium–Magnesium Solid Solutions

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