Sökning: "Microhardness"

Visar resultat 1 - 5 av 20 uppsatser innehållade ordet Microhardness.

  1. 1. Effect of Heat Treatment on the Microstructure and Hardness Property of Additively Manufactured Ti6Al-4V and Ti-6Al-4V-4.5wt.%316L Componentsfor Biomedical Applications.

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Moyosore Babatomide Fakoya; [2023]
    Nyckelord :;

    Sammanfattning : AbstractThe continuous advancement of medical implants technology presents exciting possibilities.Laser Powder Bed Fusion (L-PBF) additive manufactured Ti-6Al-4V alloy implants showtremendous promise as they offer the potential for highly personalized implants, improved implantfunctionality and enhanced long-term outcomes. LÄS MER

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

    Master-uppsats, KTH/Materialvetenskap

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

    Sammanfattning : 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. LÄS MER

  4. 3. Microstructural and Micro-Mechanical Characterization of As-built and Heat-treated samples of HASTELLOY X produced by Laser Powder Bed Fusion Process

    Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Onimisi Sanni; [2022]
    Nyckelord :As-built Hastelloy X blocks; Laser powder bed fusion LPBF ; Solution heat-treatment; Disrupted epitaxial growth; Melt Pool Boundaries MPB ; Grain Boundaries GB ; Precipitates; In-situ microtensile testing; microhardness; Mechanical properties; Twin grain boundary fractions;

    Sammanfattning : Microstructure and micro-mechanical characterization of as-built and heat-treated samples of Hastelloy X produced by laser powder bed fusion (LPBF) process has been carried out in this study. As-built LPBF blocks were solution heat-treated at 1177°C and 1220°C followed by fast cooling. LÄS MER

  5. 4. Mechanical and tribological characterization of additive manufactured Co-alloyed tool steels aimed for cutting tool bodies

    Magister-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Jijesh Rajan; [2022]
    Nyckelord :Maraging steels; Selective laser melting; microstructure; wear; Modified 18Ni300; Osprey MAR;

    Sammanfattning : A drill tool body operates under tough cutting conditions where it is subjected to severe rubbing at the drill flute margin by the sliding chips. The tool wear caused by the contact stresses of the high-speed sliding chips is one of the common damage mechanisms observed in drill tool bodies. LÄS MER

  7. 5. Tribological Performance of Ferritic Nitrocarburizing (FNC) Treated Automotive Brake Discs

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Chandan Kumar Ravindra Reddy; Shanmukharaj Jayasankar; [2021]
    Nyckelord :Tribology; Gray Cast Iron; Ferritic NitroCarburized; Coefficient of Friction; Wear.; Technology and Engineering;

    Sammanfattning : The increase of electric vehicles in the market demands the automotive industries to search for better brake disc material with high wear resistance, corrosion resistance, and longer service life. The GCI brake discs, a traditionally used material that has less wear and corrosion resistance. LÄS MER