Surface strengthening induced by the plastic deformation of parts produced by dynamic hot pressing from metal powders

1974 ◽  
Vol 13 (10) ◽  
pp. 850-853
Author(s):  
Yu. G. Dorofeev ◽  
V. I. Malevannyi ◽  
A. I. Malevannyi
Keyword(s):  
Plastic Deformation ◽  
Hot Pressing ◽  
Metal Powders ◽  
Surface Strengthening ◽  
Dynamic Hot Pressing

New methods for surface plastic deformation of low-rigidity cylindrical machine parts

2018 ◽  
Vol 2018 (8) ◽  
pp. 16-24 ◽  
Author(s):  
Семен Зайдес ◽  
Semen Zaides
Keyword(s):  
Plastic Deformation ◽  
Surface Plastic Deformation ◽  
Surface Plastic ◽  
High Productivity ◽  
Surface Strengthening ◽  
New Methods ◽  
Machine Parts

Technological potentialities at finish-strengthening processing of low-rigid parts of shaft- and axle types with local ways of machining impact are rather limited. In the paper there are considered new ways for strengthening allowing obtaining qualitative surface strengthening in machine parts at high productivity of an engineering procedure.

scholarly journals Copper-Tantalum Metal Matrix Composites Consolidated from Powder Blends by Severe Plastic Deformation

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1010
Author(s):  
Zachary S. Levin ◽  
Michael J. Demkowicz ◽  
Karl T. Hartwig
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Equal Channel Angular Extrusion ◽  
Rate Sensitivity ◽  
Matrix Composites ◽  
Metal Powders ◽  
Tantalum Metal ◽  
Mechanical Bonding

We investigated the effectiveness of severe plastic deformation by equal channel angular extrusion (ECAE) for consolidation of metal powders into metal matrix composites. Equal volumes of copper (Cu) and tantalum (Ta) powders were consolidated at ambient temperature via different ECAE routes. Composites processed by ECAE routes 4E and 4Bc were also processed at 300 °C. The resulting materials were characterized by scanning electron microscopy (SEM) and compression testing. Processing by route 4Bc at 300 °C resulted in the highest compressive strength, lowest anisotropy, and least strain rate sensitivity. We conclude that the superior properties achieved by this route arise from mechanical bonding due to interlocking Cu and Ta phases as well as enhanced metallurgical bonds from contact of pristine metal surfaces when the material is sheared along orthogonal planes.

Effect of dynamic hot pressing on carbon diffusion in powder metallurgy permanent magnets

1974 ◽  
Vol 13 (1) ◽  
pp. 24-25
Author(s):  
Yu. G. Dorofeev ◽  
Yu. S. Shatov ◽  
K. K. Lamkov ◽  
E. A. Skorikov ◽  
B. G. Gasanov
Keyword(s):  
Powder Metallurgy ◽  
Hot Pressing ◽  
Permanent Magnets ◽  
Carbon Diffusion ◽  
Dynamic Hot Pressing

Vacuum hot pressing of metal powders under the action of ultrasonic vibrations

1971 ◽  
Vol 10 (10) ◽  
pp. 790-794
Author(s):  
V. R. Pokryshev ◽  
M. S. Koval'chenko ◽  
V. I. Marchenko
Keyword(s):  
Hot Pressing ◽  
Ultrasonic Vibrations ◽  
Metal Powders ◽  
Vacuum Hot Pressing

Diffusion of carbon in iron specimens produced by dynamic hot pressing

1972 ◽  
Vol 11 (10) ◽  
pp. 792-795
Author(s):  
Yu. G. Dorofeev ◽  
V. V. Mural' ◽  
V. T. Prutsakov ◽  
K. K. Lamkov
Keyword(s):  
Hot Pressing ◽  
Dynamic Hot Pressing

Hot pressing of metal powders

1993 ◽  
Vol 76 (3) ◽  
pp. 291-297 ◽  
Author(s):  
K.T. Kim ◽  
J.H. Lee
Keyword(s):  
Hot Pressing ◽  
Metal Powders

A laboratory unit for the dynamic hot pressing of powder materials

1978 ◽  
Vol 17 (4) ◽  
pp. 310-312
Author(s):  
V. A. Martynov ◽  
V. P. Petrenko ◽  
N. V. Avdeev ◽  
R. G. Berezin
Keyword(s):  
Hot Pressing ◽  
Powder Materials ◽  
Laboratory Unit ◽  
Dynamic Hot Pressing

Application of dynamic hot pressing in powder metallurgy

1966 ◽  
Vol 5 (7) ◽  
pp. 534-540 ◽  
Author(s):  
Yu. G. Dorofeev ◽  
N. T. Zherditskii
Keyword(s):  
Powder Metallurgy ◽  
Hot Pressing ◽  
Dynamic Hot Pressing
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