The Deformation and Acoustic Emission of Aluminum-Magnesium Alloy under Non-Isothermal Thermo-Mechanical Loading

The Deformation and Acoustic Emission of Aluminum-Magnesium Alloy under Non-Isothermal Thermo-Mechanical Loading

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1683 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures.— 2015.— [020139, 5 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ)
Other Authors: Makarov S. V., Plotnikov V. A., Lysikov M. V., Kolubaev Е. А. Evgeny Aleksandrovich
Summary:Title screen
The following study investigates the deformation behavior and acoustic emission in aluminum-magnesium alloy under conditions of non-isothermal thermo-mechanical loading. The accumulation of deformation in the alloy, in conditions of change from room temperature to 500°С, occurs in two temperature intervals (I, II), characterized by different rates of deformation. The rate of deformation accumulation is correlated with acoustic emission. With load increasing in cycles from 40 to 200 MPa, the value of the boundary temperature (T b) between intervals I and II changes non-monotonically. In cycles with load up to 90 MPa, the T b value increases, while an increase up to 200 MPa makes T b shift toward lower temperatures. This suggests that the shift of boundaries in the region of low temperatures and the appearance of high-amplitude pulses of acoustic emission characterize the decrease of the magnitude of thermal fluctuations with increasing mechanical load, leading to the rupture of interatomic bonds in an elementary deformation act.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
деформации
акустическая эмиссия
алюминиево-магниевые сплавы
нагрузки
низкие температуры
тепловые флуктуации
межатомные связи
Online Access:http://dx.doi.org/10.1063/1.4932829
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644970

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