Revealing Nanoscale Strain Mechanisms in Ion-Irradiated Multilayers

2021 ◽  
Author(s):  
N. Daghbouj ◽  
H. S. Sen ◽  
M. Callisti ◽  
M. Vronka ◽  
Miroslav Karlik ◽  
...  
Keyword(s):  
Strain Mechanisms

scholarly journals Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Julian Walker ◽  
Hugh Simons ◽  
Denis O. Alikin ◽  
Anton P. Turygin ◽  
Vladimir Y. Shur ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Lead Free ◽  
Strain Mechanisms

Strain mechanisms in grey cast iron

1983 ◽  
Vol 18 (2) ◽  
pp. 377-387 ◽  
Author(s):  
L. Haenny ◽  
G. Zambelli
Keyword(s):  
Cast Iron ◽  
Grey Cast Iron ◽  
Grey Cast ◽  
Strain Mechanisms

Interplay of strain mechanisms in morphotropic piezoceramics

2015 ◽  
Vol 94 ◽  
pp. 319-327 ◽  
Author(s):  
M. Hinterstein ◽  
M. Hoelzel ◽  
J. Rouquette ◽  
J. Haines ◽  
J. Glaum ◽  
...  
Keyword(s):  
Strain Mechanisms

scholarly journals Electric-field-induced strain mechanisms in lead-free 94%(Bi1/2Na1/2)TiO3–6%BaTiO3

2011 ◽  
Vol 98 (8) ◽  
pp. 082901 ◽  
Author(s):  
Hugh Simons ◽  
John Daniels ◽  
Wook Jo ◽  
Robert Dittmer ◽  
Andrew Studer ◽  
...  
Keyword(s):  
Electric Field ◽  
Lead Free ◽  
Strain Mechanisms ◽  
Electric Field Induced Strain

Mechanical Properties and Strain Mechanisms Analysis in Ti-5553 Titanium Alloy

2011 ◽  
pp. 471-478 ◽  
Author(s):  
Timothée Duval ◽  
Patrick Villechaise ◽  
Sandra Andrieu
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Strain Mechanisms

Interphase boundary layer-dominated strain mechanisms in Cu+ implanted Zr-Nb nanoscale multilayers

2021 ◽  
Vol 202 ◽  
pp. 317-330
Author(s):  
N. Daghbouj ◽  
M. Callisti ◽  
H.S. Sen ◽  
M. Karlik ◽  
J. Čech ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Interphase Boundary ◽  
Strain Mechanisms

Metallic Hollow Sphere Structures Manufacturing Process

2009 ◽  
Vol 1188 ◽  
Author(s):  
Cecile Davoine ◽  
A. Götzfried ◽  
S. Mercier ◽  
F. Popoff ◽  
A. Rafray ◽  
...  
Keyword(s):  
Hollow Sphere ◽  
Manufacturing Process ◽  
Hollow Spheres ◽  
Eutectic Structure ◽  
Boron Diffusion ◽  
Cellular Metal ◽  
Microhardness Testing ◽  
Strain Mechanisms ◽  
Scanning Electron ◽  
Compressive Tests

AbstractThis paper focuses on manufacturing process of regular Metallic Hollow Sphere Structures (MHSS) through brazing technique. As a large stress level is generally confined into the necks formed by brazed spheres, the influence of the filler material on mechanical behavior of cellular metal has been studied. The microstructures of joints resulting from nickel hollow spheres brazing with different commercial fillers “MBF 30” and “MBF 1006” were compared by Scanning Electron Microscopy (SEM) and microhardness testing. These studies revealed a wide boron diffusion into nickel shells through grain boundaries for “MBF 30” brazing, with the formation of borides in a fine brittle eutectic structure. Conversely it was observed that the eutectic structure concentrates at the necks for “MBF 1006” and can be completely eliminated by diffusion-brazing, despite of the shells thinness. The uniaxial compressive tests of HSP specimens have shown two different strain mechanisms depending on brazing process.

scholarly journals Advances in Cyclic Behavior and Lifetime Modeling of Tempered Martensitic Steels Based on Microstructural Considerations

2008 ◽  
Vol 378-379 ◽  
pp. 81-100 ◽  
Author(s):  
Vincent Velay ◽  
Denis Delagnes ◽  
Gérard Bernhart
Keyword(s):  
Damage Mechanics ◽  
Constitutive Models ◽  
Complex Loading ◽  
Continuum Damage Mechanics ◽  
Cyclic Behavior ◽  
Irreversible Processes ◽  
Martensitic Steels ◽  
Unified Approach ◽  
Strain Stress ◽  
Strain Mechanisms

Cyclic behavior and life prediction of two tempered martensitic steels (AISI H11 and L6) are investigated under thermo-mechanical loading conditions. Two non isothermal constitutive models developed in the same framework of the thermodynamics of irreversible processes are introduced. The first one, in relation with the tempering state, considers the fatigue-ageing phenomena whereas the second one is intended to take into account more complex loading paths. This last non unified approach allows to define different strain mechanisms which can be related to microstructural considerations. The strain-stress parameters provided by both approaches can be introduced into a lifetime model which is based on continuum damage mechanics.

Genetic analysis of developmental mechanisms in hydra. XIX. Stimulation of regeneration by injury in the regeneration-deficient mutant strain, reg-16

Development ◽  
1989 ◽  
Vol 105 (3) ◽  
pp. 521-528
Author(s):  
E. Kobatake ◽  
T. Sugiyama
Keyword(s):  
Mutant Strain ◽  
Deficient Mutant ◽  
Wild Type ◽  
Regenerative Capacity ◽  
Activation Level ◽  
Original Number ◽  
Morphogenetic Potential ◽  
Hydra Magnipapillata ◽  
Strain Mechanisms ◽  
Stimulation Of

A mutant strain of Hydra magnipapillata, reg-16, has a very low regenerative capacity. After head removal, it usually restores 10–20% of the original number of tentacles in 7 days. A procedure was found to markedly improve tentacle regeneration in this strain. The closed wound located at the apical regenerating tip of the decapitated polyp was gently reopened using a pair of forceps. Reg-16 polyps treated in this way at 24 and 48 h after head removal restored nearly all of the original number of tentacles in 7 days. A lateral tissue transplantation procedure was employed to examine the effect of wound reopening on the morphogenetic potential of decapitated reg-16 polyps. Wound reopening produced a significant increase in head activation level without producing a preceding decrease in head inhibition level. This and other observations suggest that the coupled activation-inhibition changes that normally occur after head removal from the wild-type hydra do not occur in this strain. Mechanisms responsible for the wound reopening effect and the absence of activation-inhibition coupling in the mutant strain reg-16 are discussed.

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