Sökning: "Case Hardening"

Visar resultat 1 - 5 av 44 uppsatser innehållade orden Case Hardening.

  1. 1. Influence from temperature variations in stacking fault energy on the mechanical properties of stainless steels

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Christopher Hallén; Marcus Johansson Storne; [2023]
    Nyckelord :;

    Sammanfattning : This paper investigates the mechanical properties and deformation mechanisms of austenitic stainless steels and how they relate to the material property of stacking fault energy (SFE) and its relation to temperature and nickel content. Austenitic stainless steels are commonly used and well known for good mechanical properties and deformation characteristics. LÄS MER

  3. 2. Intermediate-mass black hole binary as an origin of super-massive black holes

    Kandidat-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Isabelle Signe Maj Maria Thord; [2023]
    Nyckelord :Intermediate-mass black holes; binary; merger; hardening; encounters; Physics and Astronomy;

    Sammanfattning : Galactic nuclei contain super-massive black holes (SMBHs), nuclear stellar clusters (NSCs), or both. In the NSC, intermediate-mass black holes (IMBHs) are likely to reside and form highly eccentric binaries. Over time, the orbit of a binary could harden via interaction with surrounding low-mass stars. LÄS MER

  4. 3. Cryogenic properties of additive manufactured austenitic stainless steels for space applications

    Master-uppsats, Luleå tekniska universitet/Materialvetenskap

    Författare :Patricio Piantanida; [2023]
    Nyckelord :austenitic stainless steel; additive manufacturing; cryogenic;

    Sammanfattning : The mechanical properties of three austenitic stainless steel alloys, namely 21-6-9, 316L and a modifed 316, fabricated via laser powder bed fusion, have been studied. From the results previously obtained through tensile tests at room and cryogenic temperatures, their strength and ductility were compared against similar conventionally processed materials. LÄS MER

  5. 4. Heat Treatment Energy Mapping

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Chidera Henry Mbanyeude; [2023]
    Nyckelord :Heat Treatment; Through Hardening; Case Carburizing; Surface induction hardening; specific energy consumption; CO2e; Energy Mapping; Carbon intensity;

    Sammanfattning : As the world becomes more focused on sustainability, there is increasing pressure on steel-bearing companies to improve their energy efficiency and reduce their carbon footprint. The heat treatment process accounts for about 25% of SKF's energy consumption, and it aims to achieve decarbonized operations by 2030 and the supply chain by 2050. LÄS MER

  7. 5. Oven Usage Optimization : A study on scheduling at the wear edge production at Olofsfors AB

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Anna Karlsson; [2023]
    Nyckelord :Scheduling problem; Re-entrant hybrid flow shop; Packing problem; Batching rules; Sensitivity analysis; Genetic algorithm; Schemaläggningsproblem; Packingingsproblem; Laststorleksregler; Känslighetsanalys; Genetisk algoritm;

    Sammanfattning : Olofsfors is a steel product manufacturer in Nordmaling, Sweden, producing steel edges for snowplows, tracks for forest machines, and wear edges for buckets on heavy equipment. Most of their products are heated to 900◦ C and then cooled down in water, so-called quenching, during the hardening process. LÄS MER