The effect of small plastic deformation and annealing on the properties of polycrystals: Part I. Experimental observations

1989 ◽  
Vol 20 (3) ◽  
pp. 471-477 ◽  
Author(s):  
K. J. Kurzydlowski ◽  
S. Sangal ◽  
K. Tangri
Keyword(s):  
Plastic Deformation ◽  
Small Plastic ◽  
Small Plastic Deformation

scholarly journals The Effect of Elastic Strain and Small Plastic Deformation on Tensile Strength of a Lean Al–Mg–Si Alloy

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1276
Author(s):  
Eva Anne Mørtsell ◽  
Ida Westermann ◽  
Calin Daniel Marioara ◽  
Ketill Olav Pedersen ◽  
Sigmund Jarle Andersen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Plastic Deformation ◽  
Elastic Strain ◽  
Solution Heat Treatment ◽  
Small Deformation ◽  
Age Hardening ◽  
Strength Increase ◽  
Artificial Ageing ◽  
Small Plastic ◽  
Small Plastic Deformation

Al–Mg–Si alloys are usually formed into their final shape by rolling or extrusion. After extrusion, the aluminium profiles are usually straightened, causing the material to be subjected to a small plastic deformation. This study demonstrates the positive effect on strength that can be obtained from such small deformation levels or from only elastically straining the material. Elastic straining of a lean Al–Mg–Si alloy, when performed immediately after solution heat treatment, enhances the material yield strength after artificial ageing to T6. Transmission electron microscopy shows that this effect can be attributed to a higher number density and finer dispersion of the age-hardening precipitate needles. Furthermore, introducing a small plastic deformation of 1% after solution heat treatment results in a comparable strength increase to elastically straining the material. In this case, however, the strength increase is due to the increased dislocation density, which compensates for a lower density of precipitate needles. Finally, by combining plastic deformation with a succeeding elastic strain, we demonstrate how elastic strain can cause an on-set of dislocation cell formation in this material.

The Grain Size and Porosity Dependent Constitutive Modeling for Nanocrystalline Ceramics with Small Plastic Deformation

2007 ◽  
Vol 353-358 ◽  
pp. 50-53
Author(s):  
Jian Qui Zhou ◽  
Yuan Ling Li
Keyword(s):  
Plastic Deformation ◽  
Grain Size ◽  
Published Data ◽  
Nanocrystalline Ceramics ◽  
Small Plastic ◽  
Consistent Method ◽  
Different Grain Size ◽  
Multi Phase ◽  
Small Plastic Deformation ◽  
Good Agreement

In order to understand the grain size and porosity dependent mechanical behavior of porous, multi-phase nanocrystalline ceramics, each phase is treated as a mixture of grain interior and grain boundary, and pores are taken as a single phase. In conjunction with the secant-modulus approach and iso-strain assumption, Budiansky’s self-consistent method is extended to build a constitutive model for nanocrystalline ceramics with small plastic deformation. Based on the developed model, the predicted yield strength (σ0.2) values of porous, multi-phase nanocrystalline ceramics with different grain size and porosity are compared with experimental data in the literature, the comparison shows that the predictions are in good agreement with the published data. This suggests that the developed model is capable of describing the grain size and porosity dependent mechanical behaviors of nanocrystalline ceramics with small plastic deformation.

Effect of small plastic deformation on the mechanical properties of steel 38Kh5MSFA

1969 ◽  
Vol 10 (12) ◽  
pp. 969-970
Author(s):  
V. P. Il'ina ◽  
S. S. Globa ◽  
V. N. Iordanskii ◽  
R. I. �ntin
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Small Plastic ◽  
Small Plastic Deformation

Modeling of sharp change in magnetic hysteresis behavior of electrical steel at small plastic deformation

2005 ◽  
Vol 97 (10) ◽  
pp. 10E518 ◽  
Author(s):  
M. J. Sablik ◽  
S. Rios ◽  
F. J. G. Landgraf ◽  
T. Yonamine ◽  
M. F. de Campos
Keyword(s):  
Plastic Deformation ◽  
Electrical Steel ◽  
Magnetic Hysteresis ◽  
Sharp Change ◽  
Hysteresis Behavior ◽  
Small Plastic ◽  
Small Plastic Deformation

Sharp Increase of Hysteresis Area Due to Small Plastic Deformation Studied With Magnetic Barkhausen Noise

2014 ◽  
Vol 50 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Pedro P. de C Antonio ◽  
Marcos F. de Campos ◽  
Fabio M. da S Dias ◽  
Manuel Alberteris Campos ◽  
Julio Capo-Sanchez ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Sharp Increase ◽  
Barkhausen Noise ◽  
Magnetic Barkhausen Noise ◽  
Small Plastic ◽  
Small Plastic Deformation

Magnetic properties and the giant magnetic impedance of amorphous ribbons of an FeCoCrSiB alloy after small plastic deformation

2008 ◽  
Vol 106 (4) ◽  
pp. 357-363 ◽  
Author(s):  
S. O. Volchkov ◽  
E. I. Dukhan ◽  
V. V. Gubernatorov ◽  
A. P. Potapov ◽  
V. A. Lukshina ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Magnetic Properties ◽  
Magnetic Impedance ◽  
Amorphous Ribbons ◽  
Small Plastic ◽  
Small Plastic Deformation
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