Sökning: "Microstructural characterization"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Microstructural characterization.

  1. 1. 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. 2. 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

  4. 3. Melt pool Geometry and Microstructure Characterization in Additively Manufactured WE43 Alloy

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Satya Chaitanya Vaddamanu; [2022]
    Nyckelord :;

    Sammanfattning : Mg-RE based alloys have exhibited promising properties in application for biodegradable implants. This work provides a systematic study on the characterization of melt pool geometry and profile for one such alloy, WE43. LÄS MER

  5. 4. Correlation Between Microstructural And Mechanical Properties In Niobium Carbide Reinforced Hadfield Steel Composites

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Lakshmi Manogna Dama; [2021]
    Nyckelord :Metal Matrix Composites MMCs ; Hadfield steels; Reinforcement; Technology and Engineering;

    Sammanfattning : Degradation of tools is a prevalent aspect in the mechanical world; due to the advancement of technologies and intense research and development, there are new ways and ideas to curb or delay the tool failures; one such idea is to implement Metal Matrix Composites (MMCs) with various reinforcement materials. This thesis focuses on improving the hardness and wear resistance of Hadfield steel by reinforcing it with Niobium Carbide (NbC). LÄS MER

  7. 5. Characterization of as prepared and exposed Perovskitesolar cells by microscopic and spectroscopic techniques

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

    Författare :Nagaraju Gorella; [2021]
    Nyckelord :Perovskites; Solar Cell; SEM; AFM; c-AFM; Photoluminescence; Electroluminescence; Solar simulator.;

    Sammanfattning : Studying the microstructural features, optical, and electrical properties of the thin-filmperovskite solar cells (PSC) is the main objective of this thesis work. All the PSCs used in thisthesis work were prepared by spin coating assisted with gas quenching process and the samplesreceived from Interuniversity Microelectronics Centre (IMEC), Belgium. LÄS MER