Frictional forces and resistance to the beginning of plastic deformation in Cu-Al solid solutions

E. F. Dudarev, N. V. Nikitina, V. E. Panin, V. E. Ovcharenko

Division for Materials Science

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Abstract

Extension curves have been obtained for Cu-Al solid solutions in the microdeformation range 10^-6-10^-3. It is shown that the dependence of the resistance to microdeformation on the degree e{open} of this deformation is described by σ = σ₀ ⁰ + Ae{open}^1/2, where σ₀ ⁰ is the resistance to the beginning of plastic deformation, and A = const. The stresses σ_F due to frictional forces are determined from the unloading curves. The dependences of σ₀ ⁰ and σ_F on the Al concentration c in the alloy are studied. The σ₀ ⁰ = f(c) and σF = φ(c) dependences are analyzed in the light of current ideas regarding the nature of impurity strengthening. The grain size is shown to affect the resistance to microdeformation in Cu-Al alloys.

Original language	English
Pages (from-to)	620-627
Number of pages	8
Journal	Soviet Physics Journal
Volume	12
Issue number	5
DOIs	https://doi.org/10.1007/BF00814852
Publication status	Published - 1972

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ASJC Scopus subject areas

Physics and Astronomy(all)

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Dudarev, E. F., Nikitina, N. V., Panin, V. E., & Ovcharenko, V. E. (1972). Frictional forces and resistance to the beginning of plastic deformation in Cu-Al solid solutions. Soviet Physics Journal, 12(5), 620-627. https://doi.org/10.1007/BF00814852

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abstract = "Extension curves have been obtained for Cu-Al solid solutions in the microdeformation range 10-6-10-3. It is shown that the dependence of the resistance to microdeformation on the degree e{open} of this deformation is described by σ = σ0 0 + Ae{open}1/2, where σ0 0 is the resistance to the beginning of plastic deformation, and A = const. The stresses σF due to frictional forces are determined from the unloading curves. The dependences of σ0 0 and σF on the Al concentration c in the alloy are studied. The σ0 0 = f(c) and σF = φ(c) dependences are analyzed in the light of current ideas regarding the nature of impurity strengthening. The grain size is shown to affect the resistance to microdeformation in Cu-Al alloys.",

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AU - Dudarev, E. F.

AU - Nikitina, N. V.

AU - Panin, V. E.

AU - Ovcharenko, V. E.

PY - 1972

Y1 - 1972

N2 - Extension curves have been obtained for Cu-Al solid solutions in the microdeformation range 10-6-10-3. It is shown that the dependence of the resistance to microdeformation on the degree e{open} of this deformation is described by σ = σ0 0 + Ae{open}1/2, where σ0 0 is the resistance to the beginning of plastic deformation, and A = const. The stresses σF due to frictional forces are determined from the unloading curves. The dependences of σ0 0 and σF on the Al concentration c in the alloy are studied. The σ0 0 = f(c) and σF = φ(c) dependences are analyzed in the light of current ideas regarding the nature of impurity strengthening. The grain size is shown to affect the resistance to microdeformation in Cu-Al alloys.

AB - Extension curves have been obtained for Cu-Al solid solutions in the microdeformation range 10-6-10-3. It is shown that the dependence of the resistance to microdeformation on the degree e{open} of this deformation is described by σ = σ0 0 + Ae{open}1/2, where σ0 0 is the resistance to the beginning of plastic deformation, and A = const. The stresses σF due to frictional forces are determined from the unloading curves. The dependences of σ0 0 and σF on the Al concentration c in the alloy are studied. The σ0 0 = f(c) and σF = φ(c) dependences are analyzed in the light of current ideas regarding the nature of impurity strengthening. The grain size is shown to affect the resistance to microdeformation in Cu-Al alloys.

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10.1007/BF00814852