scholarly journals Effects of Surface Condition and Combination of Roller Unit of Composite Sintered by Spark Plasma Sintering Using Aluminum Alloy Powder and α – Alumina Sludge

2014 ◽  
Vol 61 (3) ◽  
pp. 131-142 ◽  
Author(s):  
Yasuyuki KANDA ◽  
Isao FUKUMOTO
Keyword(s):  
Aluminum Alloy ◽  
Spark Plasma Sintering ◽  
Alloy Powder ◽  
Surface Condition ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Aluminum Alloy Powder

Microstructure and Compression Properties of Al-Si Alloy Foams by Spark Plasma Sintering Technique

2010 ◽  
Vol 638-642 ◽  
pp. 1890-1895 ◽  
Author(s):  
Naritoshi Aoyagi ◽  
Shigeharu Kamado ◽  
Yo Kojima
Keyword(s):  
Aluminum Alloy ◽  
Porous Materials ◽  
Spark Plasma Sintering ◽  
Compression Test ◽  
Process Conditions ◽  
Pore Morphology ◽  
Plateau Stress ◽  
Porous Aluminum ◽  
Plasma Sintering ◽  
Spark Plasma

Porous aluminum alloy has been developed by powder metallurgy route using Spark plasma sintering (SPS) technique. Sintered material was produced by SPS system after getting the mixture of Al-12Si alloy and titanium hydride powders. Porous materials are prepared under various process conditions, and the pore morphology was investigated. Compression test is performed at crosshead speed of 1mm/min, 10mm/min and 100mm/min with no lubricant. The compression strength, σC i.e. plateau stress was estimated 12MPa at the density of porous materials, 0.7 Mg/m3. Densification strain εD from compression curve is around 0.6. These properties depend on pore morphology of porous materials, and it is possible to control the morphology under specific condition with this process. Plateau stress and absorbed energy of heat treated porous Al-Si alloy were estimated by measurement of a first peak stress and calculated an area up to 0.5 strain from compressive stress-starin curves. Young’s modulus is measured by starin gauge method under compression test. Porous aluminum alloy filled mold die is also produced successfully.

Microstructures and mechanical properties of TiAl alloy fabricated by spark plasma sintering

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040036
Author(s):  
Yongjun Su ◽  
Yunfeng Lin ◽  
Na Zhang ◽  
Deliang Zhang
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Alloy Powder ◽  
Room Temperature ◽  
Tial Alloy ◽  
Sintering Temperature ◽  
Tensile Tests ◽  
Alloyed Powder ◽  
Plasma Sintering ◽  
Spark Plasma

This work deals with the consolidation of a TiAl alloy powder by spark plasma sintering (SPS). Pre-alloyed powder with a composition of Ti–48Al–2Cr–2Nb (at.%) was consolidated in a SPS furnace at temperatures between 1200[Formula: see text]C and 1325[Formula: see text]C and with a pressure of 50 MPa. The microstructures obtained after SPS depend on the sintering temperature. Tensile tests at room temperature were performed. The alloy SPSed at temperatures not less than 1250[Formula: see text]C exhibits good properties at room temperature.

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