Methods of evaluating technological plasticity in the forming of powdered metals. I. Deformation criterion of failure

1991 ◽  
Vol 30 (7) ◽  
pp. 544-548
Author(s):  
A. A. Notych ◽  
E. V. Zvonarev
Keyword(s):  
Technological Plasticity ◽  
Deformation Criterion

scholarly journals Enhancing the technological plasticity of the AlMgSi0.5 alloy strips when drawing in a rolling die

2019 ◽  
Vol 9 (3) ◽  
pp. 276-281
Author(s):  
Aleksey Abramov ◽  
Aleksandr Botkin ◽  
Vladimir Sholom ◽  
Elena Varenik ◽  
Kirill Abramov
Keyword(s):  
Technological Plasticity

TECHNOLOGICAL WAYS TO CREATE COMPOSITE MATERIALS BASED ON HEAT-RESISTANT REFRACTORY COMPOUNDS (review)

2021 ◽  
pp. 12-20
Author(s):  
A.V. Shestakov ◽  
◽  
M.M. Karashaev ◽  
N.S. Dmitriev ◽  
◽  
...  
Keyword(s):  
Composite Materials ◽  
Powder Metallurgy ◽  
Thermomechanical Processing ◽  
Technological Plasticity ◽  
Heat Resistant ◽  
System A ◽  
Refractory Compounds ◽  
Similar Materials ◽  
Powder Metallurgy Methods ◽  
Rocket Technology

The article discusses the main technological approaches to obtain heat-resistant and heat-resistant materials based on compounds in the Ni–Al system in order to use them in promising products of aviation and rocket technology. It is shown that when receiving materials based on compounds in the Ni-Al system, a phase of eutectic origin is formed based on the Ni3Al compound, which reduces the technological plasticity of the alloys of this system. The use of powder metallurgy methods eliminates such phases in the structure of alloys obtained using granule metallurgy technology, as well as with the use of special methods of powder metallurgy. Technological approaches are presented to obtain similar materials using powder metallurgy methods combined with thermomechanical processing.

Resolution of the Ehrenfest Paradox by New Contraction (Expansion) Criteria

1988 ◽  
Vol 43 (10) ◽  
pp. 865-872
Author(s):  
Edward M. Kelly
Keyword(s):  
Elastic Solid ◽  
Deformation Criterion ◽  
Null Result ◽  
Virtual Photons ◽  
Special Case ◽  
Spinning Disc

Abstract If we assume that the integrity of an elastic solid is governed by exchanges of real and virtual photons, the solid becomes a seat of innumerable interconnected microscopic Kennedy-Thorndike experiments. The null result of that experiment leads to a deformation criterion having the Lorentz- Fitzgerald contraction as a special case. For a spinning disc the criterion, combined with an equation of compatibility, gives radial and tangential deformations which resolve the Ehrenfest paradox.

A deformation criterion for fatigue of concrete in tension

2011 ◽  
Vol 12 (3) ◽  
pp. 187-197 ◽  
Author(s):  
Håkan Thun ◽  
Ulf Ohlsson ◽  
Lennart Elfgren
Keyword(s):  
Deformation Criterion
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