Sökning: "Ti alloys"

Visar resultat 11 - 15 av 98 avhandlingar innehållade orden Ti alloys.

  1. 11. Modelling microstructure evolution of weld deposited Ti-6Al-4V

    Författare :Corinne Charles; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metal deposition; Ti-6Al-4V; microstructure modelling; titanium alloy; Finite Element Method; Johnson-Mehl-Avrami; RTMwD; Materials science; Teknisk materialvetenskap; Manufacturing and materials engineering; Produktions- och materialteknik; Material Mechanics;

    Sammanfattning : The microstructure and consequently the mechanical properties of titanium alloys are highly dependent on the temperature history endured by the material. The manufacturing process of metal deposition induces repetitive cooling and heating in the material determining a specific microstructure. LÄS MER

  3. 12. Ab initio atomistic simulation of metals and multicomponent alloys

    Författare :Fuyang Tian; Levente Vitos; Kalevi Kokko; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; high entropy alloys; ab inito;

    Sammanfattning : Ab initio theory provides a powerful tool to understand and predict the behavior of materials. This thesis contains both of these aspects. First we use ab initio alloy theory to investigate a new kind of complex alloy (high-entropy alloy). LÄS MER

  4. 13. Cobalt-Chromium alloys in fixed prosthodontics

    Författare :Maria Kassapidou; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prosthodontics; cobalt-chromium; manufacturing techniques;

    Sammanfattning : Gold and its alloys have been the dominant framework materials in metal-ceramic constructions when substantial loss of tooth substance or missing teeth needs to be replaced. However, base metal alloys, such as cobalt-chromium (Co-Cr), have been introduced due to increased gold price. LÄS MER

  5. 14. Influence of Microstructure on Chip Formation - Machining Aero Engine Alloys

    Författare :Stefan Cedergren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Superalloy; Alloy 718; Ti-6Al-4V; Inconel 718; segmented chip; shear-localization;

    Sammanfattning : Aero engine materials such as nickel-iron and titanium based alloys are known to be very difficult to machine. They are also known to produce shear-localized chips; a type of chip which is associated with both an increase of the tool wear and the vibration levels during machining. LÄS MER

  7. 15. Grain refinement of aluminium by addition of Al-Ti-B master alloys

    Författare :Hans Klang; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER