Sökning: "Metallografi"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet Metallografi.

  1. 1. 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

  3. 2. Machine Learning Methods for Segmentation of Complex Metal Microstructure Features

    Master-uppsats, KTH/Materialvetenskap

    Författare :Daniel Fredriksson; [2022]
    Nyckelord :Machine learning; Metallography; Automatic segmentation; Complex microstructures; Random Forest classifier.; Maskininlärning; Metallografi; Automatisk segmentering; Komplex mikrostruktur; Random Forest klassificerare;

    Sammanfattning : Machine learning is a growing topic with possibilities that seems endless with growing areas of applications. The field of metallography today is highly dependent on the operators’ knowledge and technical equipment to perform segmentation and analysis of the microstructure. Having expert dependents is both costly and very time-consuming. LÄS MER

  4. 3. Optimization of adaptive control for spot welding

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Felix Lindblom; [2021]
    Nyckelord :;

    Sammanfattning : In December 2015 Scania Oskarshamn started production in their new facility for the body in white (BiW) production. Heat capacity control (HCC) is used to control the RSW process for all the welding robots in this facility for BiW at Scania Oskarshamn. LÄS MER

  5. 4. Deformation-Induced Martensitic Transformation and Mechanical Properties of Duplex and Austenitic Stainless Steels : A Synchrotron X-Ray Diffraction Study

    Master-uppsats, KTH/Metallografi

    Författare :Sen Lin; [2017]
    Nyckelord :Synchrotron radiation; High energy X-ray diffraction; In situ tensile loading; TRIP steel; Martensite phase transformation;

    Sammanfattning : Metastable austenitic and duplex stainless steels are widely used materials in industrial anddomestic applications, owing to their attractive characteristics such as good corrosion resistanceand favorable mechanical properties. Both types of steel experience enhanced mechanicalproperties during plastic deformation due to the formation of the martensite phase from theparent austenite phase, this is called deformation-induced martensitic transformation (DIMT). LÄS MER

  7. 5. Karaktärisering av stålplåt : Metallografi och kemisk analys

    Kandidat-uppsats, Högskolan i Jönköping/JTH, Maskinteknik

    Författare :Rickard Petersson; Rebecca Nilsson; [2017]
    Nyckelord :forging; hot-rolling; cold-rolling; historic; steel sheet roofing ; roof sheet ; microstructure; metallography; oes; spectroscopy; smide; varmvalsning; kallvalsning; historiska; plåttak; takplåtar; mikrostruktur; metallografi; oes; spektroskopi;

    Sammanfattning : Studien har genomförts på ett antal stålplåtar från olika kulturhistoriska byggnader. När kulturhistoriskt värdefulla byggnader ska renoveras måste detta göras med så god kunskap som möjligt om byggnadens olika delar och de värden dessa representerar. LÄS MER