Sökning: "Electron backscatter diffraction EBSD"

Visar resultat 6 - 10 av 16 uppsatser innehållade orden Electron backscatter diffraction EBSD.

1. 6. Microstructural characterization of quench annealed duplex SAF 2507 utilizing EBSD

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

   Författare :Simon Beyermann; [2022]
   Nyckelord :sigma phase; chi phase; electron backscatter diffraction; super duplex stainless steel; recrystallization; SAF 2507 UNS S32750 .;

   Sammanfattning : Producing large bars of duplex stainless steel free from precipitated embrittling phases isdifficult due to the many factors that influence precipitation. Research shows that intermetallicslike sigma and chi deteriorate principal material properties for the main application areas. LÄS MER

3. 7. Effect of post-treatment of cemented carbide : Microstructural investigation and evaluation of mechanical properties of cemented carbide inserts for rock tool applications

   Master-uppsats, Karlstads universitet/Avdelningen för maskin- och materialteknik

   Författare :Jessica Jacobs; [2021]
   Nyckelord :;

   Sammanfattning : Cemented carbides are used in rock tool applications by reason of their beneficial mechanical properties, i.e. a combination of high toughness, wear resistance and hardness. The cemented carbides commonly receive their hardness from tungsten carbides (WC) whereas cobalt (Co) is the dominating binder material. LÄS MER

4. 8. Iron and Oxygen Isotope Signatures of Magnetite in Iron Ore of Kiruna Type

   Master-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonik

   Författare :Malin Andersson; [2020]
   Nyckelord :IOA-deposits; magnetite; SIMS; EBSD; Fe- and O isotopes; laser fluorination;

   Sammanfattning : Stable isotope analysis of iron and oxygen isotopes in magnetite of Kiruna-type from Sweden and Chile have been conducted to further the understanding of the formation, and advance the analysis methods of these deposits. For this, data from SIMS (secondary ion mass spectroscopy), EBSD (electron backscatter diffraction) and triple oxygen analysis (by laser fluorination) are used. LÄS MER

5. 9. EB-PBF additive manufacturing of Alloy 718 : Effect of shot peening on surface characteristics and high temperature corrosion performance

   Magister-uppsats, Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och Maskinteknik

   Författare :Venkataramanan Mohandass; [2019]
   Nyckelord :Alloy 718; additive manufacturing; electron beam-powder bed fusion; surface engineering; shot peening; high temperature corrosion;

   Sammanfattning : There is an upsurge of research interest on Alloy 718 additively manufactured (AM) by electron beam powder bed fusion (EB-PBF) technique in aero and land-based gas turbine engines. However, the surface quality of the manufactured components has always been a major challenge. LÄS MER

7. 10. Effect of carbon activity on microstructure evolution in WC-Ni cemented carbides

   Master-uppsats, KTH/Materialvetenskap

   Författare :Olivia Danielsson; [2018]
   Nyckelord :Cemented carbides; Hard metal; WC-Ni; Tungsten carbide; Nickel binder; Grain coarsening; Grain growth; Carbon activity; Size distribution; EBSD; Electron backscattered diffraction;

   Sammanfattning : The aim of this work was to systematically study how the microstructure evolution is affected by the carbon activity in WC-Ni cemented carbides. Seven WC-9.59at%Ni alloys with different carbon activity were sintered at 1500 °C. LÄS MER