Essays about: "powder metallurgy"

Showing result 11 - 15 of 34 essays containing the words powder metallurgy.

  1. 11. Design of cemented carbide with Ni-based superalloy binder strengthened with y’-Ni3Al precipitates

    University essay from KTH/Materialvetenskap

    Author : Oscar Edholm; [2018]
    Keywords : Cemented Carbide; Super alloy; Ni-alloy; Ni-Super alloy; Superalloy; Ni3Al; NiAl; Gamma Prime; Gamma; Precipitates; Ni3Al Precipitates; Master Alloy; Liquid Phase Sintering; Cementerad karbid; Hårdmetall; Superlegering; Ni-legering; Ni-Superlegering; Superalloy; Ni3Al; NiAl; Gamma Prim; Gamma; Precipitates; Ni3Al Precipitates; Mästerlegering; Utfällning;

    Abstract : Replacement of cobalt in cemented carbides has gained in attention recently because threats of regulations due to health issues (cancerogenic effect), increased demand from the electric vehicle industry and the questionable extraction from countries like Democratic Republic of Congo. In this report the use of Ni-based binder as an alternative binder for cemented carbides has been explored. READ MORE

  3. 12. Process Optimization of Manufacturing of Magnets by Electro Sinter Forging (ESF)

    University essay from KTH/Industriell produktion

    Author : Marco CAPECCIA; [2018]
    Keywords : ;

    Abstract : Interest in powder metallurgy processes is nowadays continuously increasing due to several reasons such as less heavy manufactured parts, economical advantages and greater concern in environmental sustainability related to production. Electro sinter forging, ESF, belongs to them, being a sintering technique characterized by high electric current intensity released for a very short lapse of time at low voltage on a powder green body, together with an applied load. READ MORE

  4. 13. In-situ Reduction by Incorporating H2 Filled Hollow Glass Microspheres in PM HIP Capsules

    University essay from KTH/Materialvetenskap

    Author : Emil Strand; [2018]
    Keywords : Hot isostatic pressing; hollow glass microspheres; powder metallurgy; oxide reduction; surface oxides; hydrogen;

    Abstract : For many metal components the presence of hard, non-metallic inclusions such as oxides lowers the impact toughness by acting as fracture initiation points and easing crack propagation. In components produced by powder metallurgy hot isostatic pressing (PM HIP), oxides often form a continuous network of small, spherical inclusions after consolidation at the prior particle boundaries (PPB). READ MORE

  5. 14. DETERMINATION OF THE STRESSES PRESENT IN A HY-VO CHAIN SPROCKET USING MULTIBODY SIMULATION AND FINITE ELEMENT ANALYSIS

    University essay from Lunds universitet/Mekanik

    Author : Henrik Larsson; [2018]
    Keywords : Hy-Vo; chain; sprocket; simulation; ADAMS; fatigue; Technology and Engineering;

    Abstract : In this master thesis, a new way of approaching the dynamic loads on a Hy-Vo chain sprocket was investigated and analyzed. Though the approach was not new on the market, it was new to BorgWarner, whose calculations on the matter to this date have been based on approximations. READ MORE

  6. 15. Self Lubricating Components

    University essay from Uppsala universitet/Institutionen för teknikvetenskaper

    Author : Simon Tidén; Niklas Levin Bjärnlid; Tim Melin; Daniéla Quist; Filip Selenius Larsson; [2017]
    Keywords : self lubricating; solid lubricant; high speed steel; powder metallurgy; friction; wear; molybdenum disulfide; tungsten disulfide; hexagonal boron nitride; soft metals; copper;

    Abstract : The tribological and mechanical properties are of great importance for a material’s lifetime, since it is highly dependent on these two factors. The purpose of this report was to examine suitable solid lubricants for Erasteel, a company that manufactures hot isostatic pressed high speed steels, that will enhance the tribological properties of their steels without worsening the mechanical properties. READ MORE