Sökning: "Quenching and Tempering"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Quenching and Tempering.

1. 1. Investigation Of Mechanical Properties And Microstructure Of Steel-Wires

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Khalifa Maissara; [2021]
   Nyckelord :steel; heat treatment; quenching and partitioning; quenching and tempering; retained austenite; wear mechanisms; wear testing;

   Sammanfattning : Wear and friction are among the major problems faced in several industries such as mining industry. This creates challenges to select better materials with good wear behavior in order to improve the service life of the components. LÄS MER

3. 2. DILATOMETRIC EVALUATION OF SOME CRITICAL PHYSICAL PROPERTIES OF OT75 AND OT101 STEEL GRADES

   M1-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Wrya Mohamadian; [2021]
   Nyckelord :Steels; Martensite; Ms; Quenching; Heat treatment; Dilatometer; Mechanical property; Critical temperature; Phase transformation; hardness.;

   Sammanfattning : Due to its hardness, martensite, perhaps, is the most desirable structure, but at the same time, martensite is very brittle. Balancing between hardness and brittleness is a challenge that steel manufacturers must deal with it. To decrease brittleness and to solve this problem, designers purposely temper the steel. Heat treatment, e. LÄS MER

4. 3. Characterization of Secondary Carbides in Low-Alloyed Martensitic Model Alloy Tool Steels

   Master-uppsats, KTH/Materialvetenskap

   Författare :Jubica Jubica; [2020]
   Nyckelord :martensitic steel; secondary hardening; precipitation; STEM; EDS; Prisma; size distribution; martensitiskt stål; sekundärhärdning; utskiljning; STEM; EDS; PRISMA; storleksfördelning;

   Sammanfattning : The development of tool steels for making and shaping other materials requires a better understanding of the material's properties during manufacture. These high-quality steels include many alloying elements, which give increased hardness during tempering. For producing hardened microstructures, austenite generation is essential. LÄS MER

5. 4. Designing a Heat Treatment to Achieve Ductile Advanced High Strength Steels

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Abdellatif Laarich; [2020]
   Nyckelord :Heat treatment; Quenching and Partitioning; Austempering; Quenching and Tempering; High Aluminum Steel; Strenx 700MC; Ductility; Strength;

   Sammanfattning : Heat treatment is a way to significantly change materials properties. When presented with materials that lack certain mechanical properties, it is possible to change its chemical properties and microstructures by applying heat. This can help achieve better yield strength, ductility and toughness. LÄS MER

7. 5. Quenching and tempering hardness response of front axle steel beams : Different material properties during quenching and tempering

   Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Simon Zemui; [2017]
   Nyckelord :Axle steel beams; hardness; Quenching; tempering;

   Sammanfattning : The aim of this thesis was to investigate what the relation is between as-quench hardness and final surface hardness for steel beams is, depending on what tempering temperature is used. Also explain how chemistry, dimension and microstructure effects the final mechanical properties of the front axle beam. LÄS MER