Influence of temperature and strain on the amplitude-dependent internal friction of high-purity aluminum

被引：9

作者：

Golyandin, SN ^{[1
]}

Sapozhnikov, KV

Emel'yanov, YA

Sinani, AB

Nikanorov, SP

Kustov, SB

Robinson, WH

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

[2] Ecole Polytech Fed Lausanne, Dept Phys, Inst Genie Atom, CH-1015 Lausanne, Switzerland

[3] Penguin Engn Ltd, Petone 093, New Zealand

来源：

PHYSICS OF THE SOLID STATE | 1998年 / 40卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

Aluminum; Spectroscopy; State Physics; Strain Hardening; Internal Friction;

D O I：

10.1134/1.1130631

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dislocation amplitude-dependent friction (ADIF) of high-purity (99.999%) polycrystalline aluminum is investigated in the temperature range 7- 300 K at vibrational strain amplitudes of 10(-7)-10(-4) for samples in the annealed and deformed (by quasistatic, shock, and ultrasonic loading) states. The ADIF is a multistage effect in the indicated temperature and vibration amplitude ranges. Analysis of the amplitude-temperature spectra of the ADIF permits separation of components attributable to: interaction between dislocations, the interaction of dislocations with pinning points, and pure dislocation relaxation (the interaction of dislocations with the Peierls relief). ADIF is observed to depend nonmonotonically on the initial quasistatic strain determined by strain hardening and recovery processes. (C) 1998 American Institute of Physics. [S1063-7834(98)01510-X].

引用

页码：1667 / 1671

页数：5