S62 Combined In Situ Neutron Diffraction and Acoustic Emission Investigation of the Deformation Mechanisms in Magnesium Alloys

2008 ◽  
Vol 23 (2) ◽  
pp. 188-188
Author(s):  
O. Mura´nsky ◽  
D. G. Carr ◽  
M. R. Barnett ◽  
E. C. Oliver
2017 ◽  
Vol 127 ◽  
pp. 471-480 ◽  
Author(s):  
Biao Cai ◽  
Bin Liu ◽  
Saurabh Kabra ◽  
Yiqiang Wang ◽  
Kun Yan ◽  
...  

2013 ◽  
Vol 61 (16) ◽  
pp. 6093-6106 ◽  
Author(s):  
Y.F. Shen ◽  
Y.D. Wang ◽  
X.P. Liu ◽  
X. Sun ◽  
R. Lin Peng ◽  
...  

JOM ◽  
2020 ◽  
Vol 73 (1) ◽  
pp. 223-232 ◽  
Author(s):  
Jan Čapek ◽  
Efthymios Polatidis ◽  
Michal Knapek ◽  
Christophe Lyphout ◽  
Nicola Casati ◽  
...  

AbstractThe deformation behavior of additively manufactured Alloy 718 in as-built condition and after annealing was studied in situ under tensile loading along the build direction. Pre-characterization by synchrotron X-ray diffraction and electron microscopy revealed a significant amount of γ″ precipitates in the as-built samples, whereas the γ″ phase was entirely consumed and needle-like δ precipitates appeared in the annealed sample. In situ neutron diffraction (ND) and acoustic emission (AE) enabled indirect observation of the role of the precipitates on the mechanical behavior. ND provided information on the load accommodation in the matrix, while AE detected a strong signal from the interaction of dislocations with the δ-phase precipitates during deformation of the annealed samples. The results imply that in the annealed samples the matrix sheds the load to the precipitates, while in the as-built material the matrix bares a significant load.


2016 ◽  
Vol 258 ◽  
pp. 427-431
Author(s):  
Kristián Máthis ◽  
Jan Čapek ◽  
Bjørn Clausen ◽  
Tobias Panzner

The evolution of deformation mechanisms in randomly textured magnesium alloy during uniaxial and biaxial mechanical tests has been monitored using concurrent application of acoustic emission and neutron diffraction methods. The influence of the loading path on both twinning and dislocation slip is discussed in detail. It is shown that both the twinning and non-basal slip are sensitive to the loading direction.


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