Acoustic Emission as a Tool for Exploring Deformation Mechanisms in Magnesium and Its Alloys In Situ

被引：19
|
作者：
Vinogradov, Alexei [1 ,2 ]
Mathis, Kristian [3 ]
机构：
[1] Norwegian Univ Sci & Technol NTNU, Dept Engn Design & Mat, Richard Birkelandsvei 2B, N-7491 Trondheim, Norway
[2] Togliatti State Univ, Inst Adv Technol, Tolyatti 445667, Russia
[3] Charles Univ Prague, Dept Phys Mat, Ke Karlovu 5, Prague 12116, Czech Republic
来源：
JOM | 2016年 / 68卷 / 12期
关键词：
TENSION-COMPRESSION ASYMMETRY; GRAIN-SIZE; POLYCRYSTALLINE MAGNESIUM; MG ALLOYS; SLIP; DISLOCATIONS; BEHAVIOR; AZ31; TEMPERATURE; DIFFRACTION;
D O I：
10.1007/s11837-016-1966-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Structural performance of magnesium alloys depends strongly on specific deformation mechanisms operating during mechanical loading. Therefore, in situ monitoring of the acting mechanisms is a key to performance tailoring. We review the capacity of the advanced acoustic emission ( AE) technique to understand the interplay between two primary deformation mechanisms-dislocation slip and twinning-in real time scale. Details of relative contributions of dislocation slip and deformation twinning to the mechanical response of pure Mg and Mg-Al alloy are discussed in view of AE results obtained with the aid of recently proposed spectral and signal categorization algorithms in conjunction with with neutron diffraction data.
引用
收藏
页码：3057 / 3062
页数：6
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