Microstructural characterization of medical-grade stainless steel powders prepared by mechanical alloying and subsequent annealing

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buir.contributor.authorOkyay, Ali Kemal
dc.citation.epage608en_US
dc.citation.issueNumber3en_US
dc.citation.spage605en_US
dc.citation.volumeNumber24en_US
dc.contributor.authorSalahinejad, E.en_US
dc.contributor.authorHadianfard, M. J.en_US
dc.contributor.authorGhaffari, M.en_US
dc.contributor.authorAmini, R.en_US
dc.contributor.authorMashhadi, S. B.en_US
dc.contributor.authorOkyay, Ali Kemalen_US
dc.date.accessioned2016-02-08T09:39:08Z
dc.date.available2016-02-08T09:39:08Z
dc.date.issued2013en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe harmful effect of nickel ions released from conventional stainless steel implants has provided a high level of motivation for the further development of nickel-free stainless steels. In this paper, the microstructure of medical-grade nickel-free stainless steel powders, with the chemical composition of ASTM F2581, is studied during mechanical alloying and subsequent annealing. Rietveld X-ray diffraction and transmission electron microscopy evaluations reflect nanocrystallization, austenitization and amorphization of the powders due to mechanical activation. It is also realized that annealing of the as-milled powder can develop a single austenitic structure with nanometric crystallite sizes, implying a considerable inherent resistance to grain growth. This study demonstrates the merit of mechanical alloying and subsequent annealing in the development of nanostructured medical-grade stainless steels.en_US
dc.identifier.doi10.1016/j.apt.2012.11.004en_US
dc.identifier.issn0921-8831
dc.identifier.urihttp://hdl.handle.net/11693/20986
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.apt.2012.11.004en_US
dc.source.titleAdvanced Powder Technologyen_US
dc.subjectAnnealingen_US
dc.subjectMechanical alloyen_US
dc.subjectMedical-grade stainless steelen_US
dc.subjectMicrostructureen_US
dc.subjectNanostructured materialsen_US
dc.subjectChemical compositionsen_US
dc.subjectMechanical activationen_US
dc.subjectMechanical alloysen_US
dc.subjectMicro-structural characterizationen_US
dc.subjectNickel-free stainless steelen_US
dc.subjectRietveld x-ray diffractionsen_US
dc.subjectStainless steel implantsen_US
dc.subjectStainless steel powdersen_US
dc.subjectAnnealingen_US
dc.subjectGrain growthen_US
dc.subjectMechanical alloyingen_US
dc.subjectMicrostructureen_US
dc.subjectNanostructured materialsen_US
dc.subjectNickelen_US
dc.subjectTransmission electron microscopyen_US
dc.subjectX ray diffractionen_US
dc.subjectX ray powder diffractionen_US
dc.subjectStainless steelen_US
dc.titleMicrostructural characterization of medical-grade stainless steel powders prepared by mechanical alloying and subsequent annealingen_US
dc.typeArticleen_US
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Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)