Microstructure and mechanical properties of materials obtained by spark plasma sintering of Ni3Al–Ni powder mixtures

2020 ◽  
Vol 773 ◽  
pp. 138882 ◽  
Author(s):  
Lilia Shevtsova ◽  
Vyacheslav Mali ◽  
Anatoly Bataev ◽  
Alexander Anisimov ◽  
Dina Dudina
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Powder Mixtures ◽  
Mechanical Properties Of Materials ◽  
Microstructure And Mechanical Properties ◽  
Plasma Sintering ◽  
Ni Powder ◽  
Spark Plasma ◽  
Properties Of Materials

Spark Plasma Sintering of Mechanically Activated Ni and Al Nanopowders

2014 ◽  
Vol 682 ◽  
pp. 188-191 ◽  
Author(s):  
Lilia I. Shevtsova ◽  
T.S. Sameyshcheva ◽  
D.D. Munkueva
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Relative Density ◽  
Spark Plasma Sintering ◽  
Three Point Bending ◽  
Mechanical Properties Of Materials ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Properties Of Materials

The structure and mechanical properties of materials fabricated by spark plasma sintering of mechanically activated mixture of nickel and aluminum nanopowders were investigated. On account of the elemental powders ratio formation of Ni3Al compound was expected. Relative density of sintered samples was equal to ~ 95 %, microhardness of materials was 6540 MPa. Ultimate tensile strength of samples tested according to three-point bending scheme exceed 1100 MPa.

scholarly journals Microstructure and Mechanical Properties of Composites Obtained by Spark Plasma Sintering of Al–Fe66Cr10Nb5B19 Metallic Glass Powder Mixtures

Metals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1457
Author(s):  
Dina V. Dudina ◽  
Boris B. Bokhonov ◽  
Igor S. Batraev ◽  
Vyacheslav I. Kvashnin ◽  
Mikhail A. Legan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Spark Plasma Sintering ◽  
Structure Evolution ◽  
Powder Mixtures ◽  
Microstructure And Mechanical Properties ◽  
Plasma Sintering ◽  
The Matrix ◽  
Spark Plasma ◽  
Properties Of Composites

At present, metallic glasses are evaluated as alternative reinforcements for aluminum matrix composites. These composites are produced by powder metallurgy via consolidation of metallic glass-aluminum powder mixtures. In most studies, the goal has been to preserve the glassy state of the reinforcement during consolidation. However, it is also of interest to track the structure evolution of these composites when partial interaction between the matrix and the metallic glass is allowed during sintering of the mixtures. The present work was aimed to study the microstructure and mechanical properties of composites obtained by spark plasma sintering (SPS) of Al-20 vol.% Fe66Cr10Nb5B19 metallic glass mixtures and compare the materials, in which no significant interaction between the matrix and the Fe-based alloy occurred, with those featuring reaction product layers of different thicknesses. Composite materials were consolidated by SPS at 540 and 570 °C. The microstructure and mechanical properties of composites obtained by SPS and SPS followed by forging, composites with layers of interfacial reaction products of different thicknesses, and metallic glass-free sintered aluminum were comparatively analyzed to conclude on the influence of the microstructural features of the composites on their strength.

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