Entfestigung von Metallen und Legierungen beim NO‐S‐Übergang

Startsev, V. I.

doi:10.1002/crat.19770120403

Cited by 16 publications

(2 citation statements)

References 42 publications

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“…If one also allows for the acceleration of dislocations between obstacles [ll] (efficient for [B,LI-I 2 2 lola), then AO should decrease with increasing impurity concentration. The models, when considered simultaneously, yield a maximum of Aa(C) [22], which is consistent with our experimental Aa(C) curve. By the thermoinertial model [23] the dependence of the flow stress jump a t the S-N transition on the I n concentration should have a maximum which may be controlled by altering number orland strength of obstacles.…”

Section: The Effect Of the Superconducting Transitiorc On The Flow Stsupporting

confidence: 89%

Change of the Flow Stress at the Superconducting Transition in Lead—Indium Alloys

Sirenko

Fomenko

1982

phys. stat. sol. (a)

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The change is studied of the flow stress (Δσ) induced by the superconducting transition in polycrystalline lead–indium alloys in a wide range of In concentrations (up to 50 at%) combined with magnetic induction control. Magnetic flux trapping is investigated as a function of the strain and concentration. The maximum flux trapping is observed in alloys containing about 2 at% In, i.e. in the vicinity of the type I to type II superconductivity transition in the Pb–In system. Allowance for magnetic flux trapping results in true strain and impurity concentration dependences of Δσ. For all the concentrations covered, Δσ weakly depends on the strain. The earlier observed minimum in the low In concentration range (near 2 at%) is entirely due to magnetic flux trapping. The now obtained results are discussed in terms of the current theories of the plasticity change at the superconducting transition.

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Section: The Effect Of the Superconducting Transitiorc On The Flow Stsupporting

confidence: 89%

Change of the Flow Stress at the Superconducting Transition in Lead—Indium Alloys

Sirenko

Fomenko

1982

phys. stat. sol. (a)

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“…In more recent studies, the effect was used as a tool for the investigation of low-temperature plastic deformation. Some fundamental aspects are detailed in surveys [3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Influence of the superconducting transition on plasticity: applied aspects

Pustovalov

Fomenko

2004

Materials Science and Engineering: A

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The influence of elastic anisotropy on interaction of dislocations with point defects in BCC metals

Чернов¹,

Ivanov²

1984

Cryst. Res. Technol.

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Dedicated t o l'rofessor V. I. STARTSEV on the occasion of his 70th birthdayWith the use of the anisotropic theory of elasticity the energies and the force-distance profiles for the interaction of vaIious types of straight dislocations with point defects of intrusion (atoms of N, C or 0) and of replacement in RCC metals with a different degree of elastic anisotropy (Nb, V, Ta, a-Fe) have been calculated. The calculated force-distance profiles in most cases are not centrally symmetric, t h a t leads up t o a gliding asymmetry at the direct and reverse directions of dislocation motion. The crystal elastic anisotropy can change the relative mobility of dislocations of various types and accounts for a number of experimentally observed peculiarities of RCC metals stress-strain properties.Mittels der anisotropen Elastizitatstheorie wurden die Energien und Kraft-AbstandsProfile fur die Wechselwirkung verschiedener Typen von geraden Verzetzurigen mit intrusiven Punktdefekten (N-, C-, 0-Atomen) und des Ersatzes in krz-Metallen mit unterschiedlichem Grad der elastischen Anisotropie (Nb, V, Ta, a-Fe) berechnet. Die berechneten Kraft-Abstands-Profile sind in den meisten Fallen nicht zentral-symmetriseh; dies fuhrt zu einer Gleitasymmetrie in der Hin-und Herrichtung der Versetzungsbewegung. Die elastische Kristallanisotropie kann die relative Heweglichkeit der Versetzungen unterschiedlichen Typs andern und ist fiir mehrere experimentell beobachtetc Resonderheiten der Spannungs-Dehnungseigenschaften der krz-Metalle verantwortlich.

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Entfestigung von Metallen und Legierungen beim NO‐S‐Übergang

Cited by 16 publications

References 42 publications

Change of the Flow Stress at the Superconducting Transition in Lead—Indium Alloys

Change of the Flow Stress at the Superconducting Transition in Lead—Indium Alloys

Influence of the superconducting transition on plasticity: applied aspects

The influence of elastic anisotropy on interaction of dislocations with point defects in BCC metals

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