Ultrafine-grained Ti-based composites with high strength and low modulus fabricated by spark plasma sintering

2013 ◽  
Vol 560 ◽  
pp. 857-861 ◽  
Author(s):  
Y.Y. Li ◽  
L.M. Zou ◽  
C. Yang ◽  
Y.H. Li ◽  
L.J. Li
Keyword(s):  
Spark Plasma Sintering ◽  
High Strength ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma ◽  
Low Modulus

Spark plasma sintering for high-speed diffusion bonding of the ultrafine-grained near-α Ti–5Al–2V alloy with high strength and corrosion resistance for nuclear engineering

2019 ◽  
Vol 54 (24) ◽  
pp. 14926-14949 ◽  
Author(s):  
Vladimir Nikolaevich Chuvil’deev ◽  
Aleksey Vladimirovich Nokhrin ◽  
Vladimir Ilyich Kopylov ◽  
Maksim Sergeevich Boldin ◽  
Mikhail Mikhaylovich Vostokov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Spark Plasma Sintering ◽  
Diffusion Bonding ◽  
High Speed ◽  
High Strength ◽  
Nuclear Engineering ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

scholarly journals Spark Plasma Sintering of high-strength ultrafine-grained tungsten carbide

2017 ◽  
Vol 218 ◽  
pp. 012012 ◽  
Author(s):  
A V Nokhrin ◽  
V N Chuvil’deev ◽  
Yu V Blagoveshchenskiy ◽  
M S Boldin ◽  
N V Sakharov ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Spark Plasma Sintering ◽  
High Strength ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

High-strength ultrafine-grained tungsten-carbide-based materials obtained by spark plasma sintering

2015 ◽  
Vol 41 (4) ◽  
pp. 397-400 ◽  
Author(s):  
V. N. Chuvil’deev ◽  
Yu. V. Blagoveshchenskii ◽  
M. S. Boldin ◽  
N. V. Sakharov ◽  
A. V. Nokhrin ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Spark Plasma Sintering ◽  
High Strength ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

scholarly journals Exploring the Strain Hardening Mechanisms of Ultrafine Grained Nickel Processed by Spark Plasma Sintering

Metals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 65
Author(s):  
Lucía García de la Cruz ◽  
Mayerling Martinez Celis ◽  
Clément Keller ◽  
Eric Hug
Keyword(s):  
Grain Size ◽  
Strain Hardening ◽  
Spark Plasma Sintering ◽  
High Strength ◽  
Electron Backscattered Diffraction ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma ◽  
Deformed State ◽  
Hardening Mechanisms

Ultrafine grained (UFG) materials in the bigger grain size range (0.5–1) µm display a good combination of strength and ductility, unlike smaller size UFG and nanostructured metals, which usually exhibit high strength but low ductility. Such difference can be attributed to a change in plasticity mechanisms that modifies their strain hardening capability. The purpose of this work is to investigate the work hardening mechanisms of UFG nickel considering samples with grain sizes ranging from 0.82 to 25 µm. Specimens processed combining ball milling and spark plasma sintering were subjected to monotonous tensile testing up to fracture. Then, microstructural observations of the deformed state of the samples were carried out by electron backscattered diffraction and transmission electron microscopy. A lower strain hardening capability is observed with decreasing grain size. Samples in the submicrometric range display the three characteristic stages of strain hardening with a short second stage and the third stage beginning soon after yielding. Microstructural observations display a low fraction of low angle grain boundaries and dislocation density for the sample with d = 0.82 µm, suggesting changes in plasticity mechanisms early in the UFG range.

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