Sökning: "Superalloy"

Visar resultat 1 - 5 av 27 uppsatser innehållade ordet Superalloy.

  1. 1. Characterisation of additively manufactured Inconel 718 alloy by using electrolytic extraction

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Leyla Koort; Viktoria Sutorius Trollbäck; [2021]
    Nyckelord :;

    Sammanfattning : The formation of non-metallic inclusions (NMIs) are common in all steel grades and it is not possible  as  of  today  to  be able  to  remove  all  of them.  The  inclusions  are  categorised  into endogenous (oxides, nitrides, sulfides, carbides, and phosphides), and exogenous (entrapment of  nonmetals:  slag, mold). LÄS MER

  3. 2. Process Optimization and Characterization of Inconel 718 Manufactured by Metal Binder Jetting

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Tobias Eriksson; [2021]
    Nyckelord :Inconel718; Additive Manufacturing; Binder Jetting; Powder Metallurgi; Superalloy;

    Sammanfattning : The development of a process chain for Inconel 718 production utilizing Binder Jetting has been investigated. Different powder sources were compared by the effect they had on machine compatibility, powder bed packing, recyclability, green density, sintering parameters, final density, porosity, and mechanical properties. LÄS MER

  4. 3. The effect of printing parameters on the deformation and microstructure of Inconel 718 : A study in pulsed laser and powder based directed energy deposition additive manufacturing

    Master-uppsats, KTH/Materialvetenskap

    Författare :Elias Repper; [2020]
    Nyckelord :Laser; Additive Manufacturing; Metal; Deposition; Quasi-continuous-wave; Pulsed; Ni-base superalloy; Laves; Deformation; Residual stresses;

    Sammanfattning : Additive manufacturing has the power to redefine how we create components. In order to minimize removal of printed material, deformation must be kept a minimum. When deposition rate is increased during directed energy deposition so is the power requirement for melting the feedstock. LÄS MER

  5. 4. Image Analysis Methods For Additive Manufacturing Applications

    Master-uppsats, Högskolan Väst/Avdelningen för avverkande och additativa tillverkningsprocesser (AAT)

    Författare :Jayanth Ramakrishna Yogendra; [2020]
    Nyckelord :Additive Manufacturing; Image Analysis; ImageJ; MIPAR; Superalloys;

    Sammanfattning : There is an upsurge of research interest on Ni-based superalloys additively manufactured (AM) in aerospace sectors. However, achieving the accuracy and quality of the AM part is a challenging task because it is a process of adding material layer by layer with different process parameters. LÄS MER

  7. 5. Understanding the effect of temperature and time on Gamma prime coarsening for Nickel-base superalloy Haynes 282

    Master-uppsats, KTH/Materialvetenskap

    Författare :Kevin Vattappara; [2019]
    Nyckelord :Haynes 282; gamma prime 𝛾′ ; Arc-heat treatment; COMSOL modelling; isothermal transformation; coarsening; Thermo-Calc simulations;

    Sammanfattning : Haynes 282 is a gamma prime (𝛾′)-strengthened nickel base superalloy developed in 2005, exhibiting a good combination of high temperature properties and fabricability. Microstructural features such as 𝛾′ and carbides play an important role in deriving the mechanical properties of the alloy during heat treatment. LÄS MER