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  • Deep cryogenic treatment of metallic materials : seminar I
    Jovičević Klug, Patricia
    Deep cryogenic treatment (DCT) is a type of cryogenic treatment, where a material is subjected to temperatures below -150°C. When a metallic material is modified with DCT, changes in microstructure ... are induced due to change in grain size, formation of new grains, movement of dislocations, change of solubility of atoms, alteration of crystal structure, and new phase formation. Changes in the material can have positive or negative effects on the final properties of metallic materials. The metallic material's performance and later performance of manufactured components and tools from this specific material strongly depend on selection of proper material, proper design, accuracy with which the tool is made from untreated material and application of proper heat treatment, including DCT. Ferrous metals (different grades of steel) and non-ferrous alloys (aluminum, magnesium, titanium, nickel etc.) can be DCT handled. DCT treatment has shown to reduce density of defects in crystal structure, increase wear resistance of material, increase hardness, improve toughness, and reduce tensile strength and corrosion resistance. However, some researchers reported on results that show no change in properties (toughness, hardness, corrosion resistance, etc.) or even deterioration when subjected to DCT treatment. This leads to a lack of consistency and reliability of the treatment process, which is needed for integration in industry. Nevertheless, to prove with certainty the resulting outcome on the material properties and understanding the reason for the variation of this effect on metallic materials, a more systematic approach and testing with different variables should be conducted in the future.
    Vrsta gradiva - elaborat, študija ; neleposlovje za odrasle
    Založništvo in izdelava - Ljubljana : Mednarodna podiplomska šola Jožefa Stefana = Jožef Stefan International Postgraduate School, 2019
    Jezik - angleški
    COBISS.SI-ID - 1469866

Knjižnica/institucija Kraj Akronim Za izposojo Druga zaloga
Inštitut za kovinske materiale in tehnologije, Ljubljana Ljubljana IMTLJ v čitalnico 1 izv.
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