Theoretical investigation of the process of cold extrusion of rods from unplasticized metal powders. II. Strain hardening of the material of the powder

A. V. Stepanenko; L. A. Isaevich; A. A. Veremeichik

doi:10.1007/bf00812167

Theoretical investigation of the process of cold extrusion of rods from unplasticized metal powders. II. Strain hardening of the material of the powder

Soviet Powder Metallurgy and Metal Ceramics ◽

10.1007/bf00812167 ◽

1987 ◽

Vol 26 (6) ◽

pp. 440-442

Author(s):

A. V. Stepanenko ◽

L. A. Isaevich ◽

A. A. Veremeichik

Keyword(s):

Strain Hardening ◽

Theoretical Investigation ◽

Cold Extrusion ◽

Metal Powders

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Theoretical investigation of the process of cold extrusion of rods from unplasticized metal powders. III. Extrusion pressure

Soviet Powder Metallurgy and Metal Ceramics ◽

10.1007/bf01156548 ◽

1987 ◽

Vol 26 (7) ◽

pp. 519-523

Author(s):

A. V. Stepanenko ◽

L. A. Isaevich ◽

A. A. Veremeichik ◽

T. A. Medvedeva

Keyword(s):

Theoretical Investigation ◽

Extrusion Pressure ◽

Cold Extrusion ◽

Metal Powders

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Theoretical investigation of the process of cold extrusion of rods from unplasticized metal powders. I. Distribution of porosity and stresses in the conical seat of plastic deformation

Soviet Powder Metallurgy and Metal Ceramics ◽

10.1007/bf00797056 ◽

1987 ◽

Vol 26 (5) ◽

pp. 353-356

Author(s):

A. V. Stepanenko ◽

L. A. Isaevich ◽

A. A. Veremeichik ◽

T. A. Medvedeva

Keyword(s):

Plastic Deformation ◽

Theoretical Investigation ◽

Cold Extrusion ◽

Metal Powders

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Some Material Characteristics of Cold-Sprayed Structures

Research Letters in Materials Science ◽

10.1155/2007/27347 ◽

2007 ◽

Vol 2007 ◽

pp. 1-3 ◽

Cited By ~ 5

Author(s):

Victor K. Champagne ◽

Dennis J. Helfritch ◽

Matthew D. Trexler

Keyword(s):

Strain Hardening ◽

Model Calculation ◽

Metal Powder ◽

Impact Velocity ◽

Cold Spray ◽

High Velocity ◽

Cold Spraying ◽

Metal Powders ◽

Rocket Nozzle ◽

Powder Particles

The deposition and consolidation of metal powders by means of cold spray are methods whereby powder particles are accelerated to high velocity through entrainment in a gas undergoing expansion in a rocket nozzle and are subsequently impacted upon a surface. The impacted powder particles form a consolidated structure which can be several centimeters thick. The characteristics of this structure depend on the initial characteristics of the metal powder and upon impact velocity. The influence of impact velocity on strain hardening and porosity are examined. A materials model is proposed for these phenomena, and model calculation is compared with experiment for the cold spraying of aluminum.

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