The effect of the sintering temperature on the structural-phase state of powder alloys based on NiAl intermetallic compounds

Eduard Kozlov, Natalya Popova, Elena Nikonenko, Marina Vladimirovna Fedorishcheva, Nina Sizonenko, Nina Koneva

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Investigations of the phase composition, morphology and grain size of the sintered powder alloy based on NiAl intermetallic compound by X-ray and TEM on thin foils were carried out. The sintering temperature was varied from 1100 to 1400°C. The effect of the sintering temperature on the structure-phase state of the powder alloy was studied. It was established that the main volume of the alloy is formed by the B2 superstructure consisting of Ni and Al. The NiAl phase is the grains whose boundaries contain various oxides: non-sintered alloy La2O3, sintered alloys FeYO3 and (Fe,Al)5Y3O12. Inside the NiAl grain phase, both before and after sintering at dislocations, there are nanosized particles of Y2Al phase.

    Original languageEnglish
    Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    PublisherAmerican Institute of Physics Inc.
    Volume1783
    ISBN (Electronic)9780735414457
    DOIs
    Publication statusPublished - 10 Nov 2016
    EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
    Duration: 19 Sep 201623 Sep 2016

    Conference

    ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    CountryRussian Federation
    CityTomsk
    Period19.9.1623.9.16

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    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Kozlov, E., Popova, N., Nikonenko, E., Fedorishcheva, M. V., Sizonenko, N., & Koneva, N. (2016). The effect of the sintering temperature on the structural-phase state of powder alloys based on NiAl intermetallic compounds. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Vol. 1783). [020111] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966404