skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy

Abstract

A correlation between the dynamics of deformation bands and the discrete acoustic emission during the intermittent creep of the AlMg{sub 6} alloy using a high-speed video recording with a time resolution to 50 μs has been studied. A trigger of a macroscopic deformation step in the creep curve is the nucleation and the broadening of the primary deformation band that generates a characteristic acoustic emission signal with duration of several milliseconds. The results confirm the mechanism of generating an acoustic emission signal related to the cooperative dislocations outcrop on the specimen external surface.

Authors:
; ;  [1]
  1. Derzhavin Tambov State University (Russian Federation)
Publication Date:
OSTI Identifier:
22771671
Resource Type:
Journal Article
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 59; Journal Issue: 12; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7834
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACOUSTICS; ALUMINIUM ALLOYS; CORRELATIONS; CREEP; DEFORMATION; DISLOCATIONS; EMISSION; MAGNESIUM COMPOUNDS; SURFACES; TIME RESOLUTION; VELOCITY

Citation Formats

Shibkov, A. A., E-mail: shibkov@tsu.tmb.ru, Zheltov, M. A., Gasanov, M. F., and Zolotov, A. E. Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy. United States: N. p., 2017. Web. doi:10.1134/S1063783417120289.
Shibkov, A. A., E-mail: shibkov@tsu.tmb.ru, Zheltov, M. A., Gasanov, M. F., & Zolotov, A. E. Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy. United States. doi:10.1134/S1063783417120289.
Shibkov, A. A., E-mail: shibkov@tsu.tmb.ru, Zheltov, M. A., Gasanov, M. F., and Zolotov, A. E. Fri . "Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy". United States. doi:10.1134/S1063783417120289.
@article{osti_22771671,
title = {Mechanism of low-frequency discrete acoustic emission during intermittent creep of aluminum alloy},
author = {Shibkov, A. A., E-mail: shibkov@tsu.tmb.ru and Zheltov, M. A. and Gasanov, M. F. and Zolotov, A. E.},
abstractNote = {A correlation between the dynamics of deformation bands and the discrete acoustic emission during the intermittent creep of the AlMg{sub 6} alloy using a high-speed video recording with a time resolution to 50 μs has been studied. A trigger of a macroscopic deformation step in the creep curve is the nucleation and the broadening of the primary deformation band that generates a characteristic acoustic emission signal with duration of several milliseconds. The results confirm the mechanism of generating an acoustic emission signal related to the cooperative dislocations outcrop on the specimen external surface.},
doi = {10.1134/S1063783417120289},
journal = {Physics of the Solid State},
issn = {1063-7834},
number = 12,
volume = 59,
place = {United States},
year = {2017},
month = {12}
}