Influence of processing parameters and particle size on the properties of hot work and high speed tool steels by Spark Plasma Sintering

2011 ◽  
Vol 32 (4) ◽  
pp. 1796-1805 ◽  
Author(s):  
M. Pellizzari ◽  
A. Fedrizzi ◽  
M. Zadra
Keyword(s):  
Particle Size ◽  
Spark Plasma Sintering ◽  
High Speed ◽  
Processing Parameters ◽  
Tool Steels ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of Spark Plasma Sintering on the Microstructure Evolution and Properties of M3:2 High-Speed Steel

2014 ◽  
Vol 788 ◽  
pp. 329-333
Author(s):  
Rui Zhou ◽  
Xiao Gang Diao ◽  
Jun Chen ◽  
Xiao Nan Du ◽  
Guo Ding Yuan ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Spark Plasma Sintering ◽  
High Speed ◽  
Bending Strength ◽  
Sintering Temperature ◽  
High Speed Steel ◽  
Continuous Heating ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
The Impact

Effects of sintering temperatures on the microstructure and mechanical performance of SPS M3:2 high speed steel prepared by spark plasma sintering was studied. High speed steel sintering curve of continuous heating from ambient temperature to 1200°C was estimated to analyze the sintering processes and sintering temperature range. The sintering temperature within this range was divided into groups to investigate hardness, relative density and microstructure of M3:2 high-speed steel. Strip and quadrate carbides were observed inside the equiaxed grains. SPS sintering temperature at 900°C can lead to nearly full densification with grain size smaller than 20μm. The hardness and bending strength are higher than that of the conventionally powder metallurgy fabricated ones sintered at 1270°C. However, fracture toughness of the high speed steel is lower than that of the conventional powder metallurgy steels. This can be attributed to the shape and distribution of M6C carbides which reduce the impact toughness of high speed steels.

scholarly journals Effect of initial particle size and various composition on the spark plasma sintering of binderless tungsten carbide

2021 ◽  
Vol 1758 (1) ◽  
pp. 012022
Author(s):  
E A Lantsev ◽  
N V Malekhonova ◽  
V N Chuvil`deev ◽  
A V Nokhrin ◽  
M S Boldin ◽  
...  
Keyword(s):  
Particle Size ◽  
Tungsten Carbide ◽  
Spark Plasma Sintering ◽  
Initial Particle ◽  
Initial Particle Size ◽  
Plasma Sintering ◽  
Spark Plasma

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 Particle size dependent sinterability and magnetic properties of recycled HDDR Nd–Fe–B powders consolidated with spark plasma sintering

2020 ◽  
Vol 38 (1) ◽  
pp. 90-99 ◽  
Author(s):  
Awais Ikram ◽  
Farhan Mehmood ◽  
Richard Stuart Sheridan ◽  
Muhammad Awais ◽  
Allan Walton ◽  
...  
Keyword(s):  
Particle Size ◽  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Size Dependent ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of processing parameters on the microstructure and thermal conductivity of diamond/Ag composites fabricated by spark plasma sintering

Rare Metals ◽  
2010 ◽  
Vol 29 (6) ◽  
pp. 625-629 ◽  
Author(s):  
Wenjia Gao ◽  
Chengchang Jia ◽  
Xian Jia ◽  
Xuebing Liang ◽  
Ke Chu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Spark Plasma Sintering ◽  
Processing Parameters ◽  
Plasma Sintering ◽  
Spark Plasma

Effects of Processing Parameters of SPS on the Densification and Texture of LaPO4 Ceramics

2008 ◽  
Vol 368-372 ◽  
pp. 1059-1061 ◽  
Author(s):  
Ai Bing Du ◽  
Zhi Xue Qu ◽  
Chun Lei Wan ◽  
Ruo Bing Han ◽  
Wei Pan
Keyword(s):  
Relative Density ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Processing Parameters ◽  
Preferred Orientation ◽  
Holding Time ◽  
Plasma Sintering ◽  
Spark Plasma

Spark plasma sintering was used to fabricate the LaPO4 ceramics and the effect of SPS holding time and sintering temperature on the densification and texture of LaPO4 ceramics were studied. The results revealed that holding time had no obvious influence on the densification of LaPO4 ceramics under the present process. The density increases with the increase of sintering temperature, when it reached 1350°C, the relative density kept nearly constant of 98.6 %. The preferred orientation of LaPO4 ceramics approximately increases with the increase of sintering temperature, but contrary impact in holding time.

scholarly journals Nickel-graphite composites of variable architecture by graphitization-accompanied spark plasma sintering and hot pressing and their response to phase separation

2015 ◽  
Vol 47 (3) ◽  
pp. 237-248 ◽  
Author(s):  
D.V. Dudina ◽  
A.V. Ukhina ◽  
B.B. Bokhonov ◽  
V.I. Mali ◽  
A.G. Anisimov ◽  
...  
Keyword(s):  
Particle Size ◽  
Spatial Distribution ◽  
Phase Separation ◽  
Spark Plasma Sintering ◽  
Hot Pressing ◽  
Porous Structures ◽  
Plasma Sintering ◽  
Porous Graphite ◽  
Spark Plasma ◽  
Graphite Composites

We report the formation and phase separation response of nickel-graphite composites with variable-architecture phases by graphitization-accompanied consolidation via Spark Plasma Sintering and hot pressing. It was shown that the application of pressure during consolidation is crucial for the occurrence of graphitization and formation of 3D graphite structures. We evaluated the suitability of the synthesized composites as precursors for making porous structures. Nickel behaved as a space holder with the particle size and spatial distribution changing during consolidation with the temperature and determining the structure of porous graphite formed by phase separation by dissolution in HCl. The response of the consolidated Ni-Cgr to separation of carbon by its burnout in air was studied. The result of the carbon removal was either the formation of a dense and continuous NiO film on the surface of the compacts or oxidation through the compact thickness. The choice between these two options depended on the density of the compacts and on the presence of carbon dissolved in nickel. It was found that during the burnout of graphite from Ni-Cgr composites, sintering, rather than formation of pores, dominated.

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