Influence of the solute concentration on the anelasticity in Mg-Al alloys: A multiple-approach study

JOURNAL OF ALLOYS AND COMPOUNDS

卷:786

Article

Drozdenko, Daria^1,2  Capek, Jan¹  Clausen, Bjorn³  Vinogradov, Alexei^4,5  Mathis, Kristian¹ 

[1] Charles Univ Prague, Fac Math & Phys, Ke Karlovu 5, CR-12116 Prague, Czech Republic

[2] Kumamoto Univ, Magnesium Res Ctr, Chuo Ku, 2-39-1 Kurokami, Kumamoto 8608555, Japan

[3] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87544 USA

[4] Norwegian Univ Sci & Technol NTNU, Dept Ind & Mech Engn, N-7491 Trondheim, Norway

[5] Togliatti State Univ, Inst Adv Technol, Tolyatti 445020, Russia

关键词: Mg-Al alloy;    Twinning-detwinning;    Neutron diffraction;    Acoustic emission;    High-speed camera;    In-situ SEM;   

DOI  :  10.1016/j.jallcom.2019.01.358

来源: Elsevier

【 摘 要 】

The anelastic mechanical response caused by complex twinning-detwinning processes interacting with dislocation slip in Mg and its alloys is ubiquitous for their deformation behavior. A rare blend of advanced in-situ techniques with different spatiotemporal resolutions, including the acoustic emission (AE) measurements, neutron diffraction, in-situ SEM and high speed microscopic video imaging, enabled access to otherwise inaccessible fine microstructural details of the underlying deformation mechanisms during cyclic loading of Mg alloys. Specifically, the influence of the alloying content on the anelastic behavior was characterized by the combination of these techniques. The applicability, advantages, and disadvantages of different in-situ techniques to study the deformation mechanisms in Mg alloys are discussed. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free