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Title: The influence of sintering temperature on microstructure and mechanical properties of Ni-Al intermetallics fabricated by SPS

In the present study PN85Yu15 was used as elemental powder to produce a sintered compound with Ni3Al as main phase. The Spark Plasma Sintering (SPS) technique is used to compact the powders. The powder was sintered in a temperature range between 1000°C and 1150°C to observe the influence of the sintering temperature on the microstructure and the mechanical properties. The microstructure was observed with optical microscope (OM), the phase composition was characterized by X-ray diffraction (XRD) technique. Density and microhardness were observed and compared the values with the results of other researchers. The compressive-, density- and microhardness tests show as clear result that with increasing the sintering temperature nearly all properties become better and also the microstructure studies show that porous places become less.
Authors:
; ; ;  [1] ; ;  [2]
  1. Novosibirsk State Technical University, Novosibirsk, 630073 (Russian Federation)
  2. Lavrentyev Institute of Hydrodynamics SB RAS, Novosibirsk, 630090 (Russian Federation)
Publication Date:
OSTI Identifier:
22492602
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1683; Journal Issue: 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; COMPARATIVE EVALUATIONS; DENSITY; INTERMETALLIC COMPOUNDS; MICROHARDNESS; MICROSTRUCTURE; OPTICAL MICROSCOPES; POROUS MATERIALS; POWDERS; SINTERING; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K; X-RAY DIFFRACTION