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Investment casting of gamma TiAl intermetallics

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F05%3APU54873" target="_blank" >RIV/00216305:26210/05:PU54873 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Investment casting of gamma TiAl intermetallics

  • Original language description

    The paper deals with physical and chemical analyses of the evaporation of aluminium from a TiAl melt, with reactions between the melt and the refractories of crucibles, and with reactions between the melt and residual gases in the vacuum furnace chamber.The present study introduces a 1D model of the heat flow in a system composed of a TiAl intermetallic casting, a ceramic shell mould and the vacuum furnace environment. Furthermore, a 1D model of the thermal strain in the casting-mould system during coooling to room temperature is also presented. The parametric study aimed at minimizing thermal stresses provided the optimum initial mould temperatures and cooling kinetics of the system mould-TiAl castings resulted in macroscopically sound castings thatwere free of macrocracks.

  • Czech name

    Přesné lití intermetalik gama TiAl

  • Czech description

    Práce obsahuje termodynamickou analýzu reakcí roztavené slitiny TiAl s žárovzdorninami kelímků, keramických forem a s atmosférou vakuové pece. V práci je dále uveden 1D model vedení tepla v soustavě odlitek TiAl - keramická skořepina a na něj navazující1D model vzniku napjatosti v odlitku. Vytvořené modely umožňují optimalizaci základních licích parametrů (počáteční teplota formy, licí teplota, režim ochlazování odlitků) poskytujících minimální napětí v odlitku během ochlazování.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JG - Metallurgy, metal materials

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA106%2F04%2F0853" target="_blank" >GA106/04/0853: Thermal and strain cycles in the TiAl intermetallic casting - caramic shell mould systém</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    12th International Metallurgy-Materials Congress and Fair

  • ISBN

    975-395-941-9

  • ISSN

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    1-8

  • Publisher name

    UCEAT Chamber of Metallurgical Engineers

  • Place of publication

    Ankara

  • Event location

    Ankara

  • Event date

    Sep 28, 2005

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article