Sökning: "Calphad"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Calphad.

  1. 1. Thermodynamic Modelling and Experimental Investigation of Tungsten Partitioning in Nickel Based Alloys

    Master-uppsats, KTH/Materialvetenskap

    Författare :Joshva Kumpati; [2018]
    Nyckelord :Calphad; Tungsten partitioning; Nickel based alloys; Thermo-Calc; Thermodynamic database; Ni-W binary; Calphad; volframpartitionering; Nickelbaslegering; Termo-Calc; Termodynamisk databas; Ni-W;

    Sammanfattning : Thermo-Calc software AB develops high quality thermodynamic and kinetic databases to predict and simulate accurately multi-component phase behaviour in complex systems. One problem with their Ni-based alloys and superalloy solutions database (TCNI8) is poor description of tungsten partitioning for multi-component nickel based alloys. LÄS MER

  2. 2. Thermodynamic modelling ofmartensite start temperature in commercial steels

    Master-uppsats, KTH/Materialvetenskap

    Författare :Arun Kumar Gulapura Hanumantharaju; [2018]
    Nyckelord :Martensite start temperature; Thermodynamic modelling; Austenite grain size; Epsilon martensite; CALPHAD;

    Sammanfattning : Firstly, an existing thermodynamic model for the predicting of martensite start temperature of commercial steels has been improved to include more elements such as N, Si, V, Mo, Nb, W, Ti, Al, Cu, Co, B, P and S and their corresponding composition ranges for Martensitic transformation. The predicting ability of the existing model is improved considerably by critical assessment of different binary and ternary systems i. LÄS MER

  3. 3. CALPHAD study of cubic carbide systems with Cr

    Master-uppsats, KTH/Materialvetenskap

    Författare :Zhangting He; [2015]
    Nyckelord :CALPHAD; cubic carbide; thermodynamics;

    Sammanfattning : Cubic carbides (titanium, tantalum, niobium, and zirconium carbides) can constitute a significant proportion of so-called cubic and cermet grades, where it is added to substitute a portion of tungsten carbide. It is thus critical to understand and be able to thermodynamically model the cubic carbide systems. LÄS MER

  4. 4. Termodynamisk utvärdering av borstål

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Daniel Persson; [2014]
    Nyckelord :Fe-B-C; Thermo-Calc; Boron steel; Thermodynamic Evaluation of Steel; CALPHAD; Low Alloyed Steel; Fe-B-C; Thermo-Calc; borstål; termodynamisk utvärdering av stål; CALPHAD; mikrolegerade stål.;

    Sammanfattning : Vid framställning av olika material är introduceringen av legeringselement ett betydelsefullt område. Vid framställning av stål kan egenskaperna för stålet optimeras genom att styra de kemiska reaktionerna som sker i samband med att stålet legeras. För legeringar av stål är låga halter av grundämnet bor av intresse. LÄS MER

  5. 5. Alternative binder phases for WC cemented carbides

    Master-uppsats, KTH/Materialvetenskap

    Författare :Chunxin Liu; [2014]
    Nyckelord :Binder phase; cemented carbides; WC; Co;

    Sammanfattning : WC cemented carbides are composites consisting of WC and a binder phase. WC/Co is widely used as cutting tools due to its excellent combination of hardness and toughness. This thesis work was performed at the R&D department of Sandvik Coromant and aimed to find the alternative binder phase to substitute cobalt. LÄS MER