6533b7d4fe1ef96bd126327b
RESEARCH PRODUCT
Synthesis of FeAl Hetero-Nanostructured Bulk Parts via Spark Plasma Sintering of Milled Powder
Thierry GrosdidierFrédéric BernardGang JiSébastien Launoissubject
010302 applied physicsMaterials scienceMetallurgySinteringSpark plasma sinteringFEAL02 engineering and technology021001 nanoscience & nanotechnologyMicrostructure01 natural sciencesNanocrystalline material[PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci][SPI.MECA.MEMA] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph][PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph][PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]Powder metallurgy0103 physical sciencesNano-[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph][PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci][CHIM.CRIS]Chemical Sciences/Cristallography[CHIM.CRIS] Chemical Sciences/Cristallography0210 nano-technologyDuctilityComputingMilieux_MISCELLANEOUSdescription
AbstractSpark plasma sintering (SPS) has been used in order to introduce nanocrystalline grains within fully dense FeAl consolidated parts. Hetero-nanostructured parts, consisting of nano, ultrafine and micrometric grains, have been successfully processed when milled - Y2O3 reinforced - FeAl powder was used. The large temperature differences that are spontaneously generated during the SPS process as well as the use of milled powder account for the formation of such interesting structures. The grain size distribution - that is suggested to be very potent to improve both strength and ductility - could be significantly modified by a proper selection of sintering temperature and holding time.
year | journal | country | edition | language |
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2006-01-01 |