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EFFECT OF CYCLIC HEAT TREATMENT ON CAST STRUCTURE OF TIAL ALLOY

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F13%3A00499364" target="_blank" >RIV/60162694:G43__/13:00499364 - isvavai.cz</a>

  • Result on the web

    <a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    EFFECT OF CYCLIC HEAT TREATMENT ON CAST STRUCTURE OF TIAL ALLOY

  • Original language description

    The subject of the article is focused on the refining of the cast structure of gamma TiAl?2Nb alloy using cyclic heat treatment and on the analysis of the grain refining mechanism. Microstructure evolution after applied cycles of heat treatment was characterized using light, laser and electron microscopy and using microhardness tests. Application of five heat treatment cycles during which two phase transformations (eutectoid and alpha-recrystallization reactions) repeatedly took place resulted in refining of the cast columnar structure. The mean grain-lamellar colony size 512 micrometres was transformed to fully lamellar structure containing gamma and alpha2 phases having the mean grain size 229 micrometres. Lamellae thickness of gamma was not changedwhile the thickness of alpha2 phase decreased to 78 nm. Refining of alpha2 phase resulted in the increase of the microhardness by 20 %. The recrystallized cast structure obtained by cyclic heat treatment and the knowledge on the mechanism

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    KA - Militarism

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    ICMT´13 INTERNATIONAL CONFERENCE ON MILITARY TECHNOLOGIES 2013

  • ISBN

    978-80-7231-918-3

  • ISSN

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

    1521-1524

  • Publisher name

    Univerzita obrany, Brno

  • Place of publication

    Brno, Czech Republic

  • Event location

    Brno

  • Event date

    May 22, 2013

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article