scholarly journals Line tension and morphology of a droplet and a bubble attached to the inner wall of a spherical cavity

2016 ◽  
Vol 144 (14) ◽  
pp. 144704 ◽  
Author(s):  
Masao Iwamatsu
Keyword(s):  
Spherical Cavity ◽  
Line Tension

Test of the stability of a three-phase contact line with negative line tension

1999 ◽  
Vol 96 (9) ◽  
pp. 1335-1339 ◽  
Author(s):  
ALAN E. VAN GIESSEN, DIRK JAN BUKMAN, B.
Keyword(s):  
Contact Line ◽  
Line Tension ◽  
Phase Contact ◽  
Three Phase ◽  
The Stability

Fluid Dynamics of Spherical Cavity Reactors

1987 ◽  
Author(s):  
Isaac Maya ◽  
Craig Christy ◽  
Mohamad Dagher ◽  
Thomas Kim ◽  
J. Richard Williams
Keyword(s):  
Fluid Dynamics ◽  
Spherical Cavity

scholarly journals The Orowan Stress Measurement of Twinning Dislocations in Magnesium

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1020
Author(s):  
Xiao-Zhi Tang ◽  
Ya-Fang Guo
Keyword(s):  
Precipitation Hardening ◽  
Stress Measurement ◽  
Line Tension ◽  
Metallic Alloys ◽  
Atomistic Simulations ◽  
Stick Slip ◽  
Lack Of Information ◽  
Classic Theory ◽  
Orowan Stress ◽  
Bypass Mechanism

The interaction between a lattice dislocation and non-shearable precipitates has been well explained by the Orowan bypass mechanism. The calculated additional shear stress facilitates the evaluation of precipitation hardening in metallic alloys. The lack of information about how a twinning dislocation behaves in the same scenario hinders our understanding of the strengthening against twin-mediated plasticity in magnesium alloys. In the current study, the bowing and bypassing of a twining dislocation impeded by impenetrable obstacles are captured by atomistic simulations. The Orowan stress measurement is realized by revealing the stick-slip dynamics of a twinning dislocation. The measured Orowan stress significantly deviate from what classic theory predicts. This deviation implies that the line tension approximation may generally overestimate the Orowan stress for twinning dislocations.

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