Essays about: "steels metallurgy"

Showing result 1 - 5 of 6 essays containing the words steels metallurgy.

  1. 1. Simulation and Experimental Based Hardenability Evaluation of Chromium Alloyed Powder Metal Steels

    University essay from KTH/Materialvetenskap

    Author : Atharva Kotasthane; [2023]
    Keywords : Hardenability; Martensite; Simulation Modelling; Microhardness; Microstructure; Härdbarhet; Martensit; Simuleringsmodellering; Mikrohårdhet; Mikrostruktur;

    Abstract : Powder metallurgy is a branch of metal forming technology where metal powders are used to manufacture parts and components. It is a flexible and economical technique for manufacturing complicated shapes. This present work focuses on press and sinter technology and forms a part of Höganäs’s efforts of modelling hardenability through quenching. READ MORE

  3. 2. Modelling the influence of porosity on fatigue strength of sintered steels

    University essay from Uppsala universitet/Strukturkemi

    Author : Emily Hall; [2019]
    Keywords : Fatigue; Powder metallurgy; PM; sintered steels; fracture mechanics; porosity; metal powders; fatigue strength; fatigue limit; utmattning; pulvermetallurgi; metallpulver; utmattningsgräns; brottmekanik; porositet; sintring;

    Abstract : The pores in pressed and sintered components constitute weak points in the material since the stress concentration is larger than the nominal stress there. Therefore, fatigue cracks initiate at the pores. Specifically, it can be assumed that the fatigue cracks initiate at the largest pore in the stressed volume. READ MORE

  4. 3. 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

  5. 4. Self Lubricating Components

    University essay from Uppsala universitet/Institutionen för teknikvetenskaper

    Author : Filip Selenius Larsson; Simon Tidén; Niklas Levin Bjärnlid; Daniéla Quist; Tim Melin; [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

  6. 5. Diffusion of Elemental Additives during Sintering

    University essay from KTH/Materialvetenskap

    Author : Muhammad Nabeel; [2012]
    Keywords : Diffusion; distribution; alloying elements; powder metallurgy;

    Abstract : The mechanical properties of components made by PM steels are normally inferior to those made by alternative processes. One of the main reasons is that a large amount of pores are present in sintered components. READ MORE