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Found 5 essays matching the above criteria.

  1. 1. Synthesis and thermoelectric properties of Cr1-xMexN (Me = Mo, V)

    University essay from Linköpings universitet/Tunnfilmsfysik

    Author : Victor Rutberg; [2022]
    Keywords : Chromium nitride; thin films; thermoelectrics; physical vapour deposition; medium entropy alloy;

    Abstract : Among emerging materials systems for thermoelectric applications, the early transition-metal nitrides based on ScN and CrN show unexpectedly promising properties. These properties are determined by high Seebeck coefficient, low thermal conductivity, and high electrical conductivity. READ MORE

  3. 2. Nitrogen Without Oxygen : The effect of ferroalloys added after vacuum treatment on cleanliness of nitrogen-alloyed tool steel

    University essay from KTH/Materialvetenskap

    Author : Leo Nilsson Hultén; [2021]
    Keywords : Tool steel; Electro-Slag Remelting ESR; Nitrogen Alloying; Ferroalloys; Nonmetallic Inclusions NMI; Verktygsstål; Elektroslaggomsmältning ESR; Kvävelegering; Ferrolegeringar; Ickemetalliska Inneslutningar NMI;

    Abstract : Nitrogen-alloyed tool steel is made at Uddeholms AB by adding high-nitrogen ferroalloy after vacuum degassing where introduced impurities are hard to remove. In this thesis two types of high-nitrogen ferrochromium are compared, a solid version and a powder cored wire. READ MORE

  4. 3. Evaluation of the η (Eta) nitride with three laboratory melts

    University essay from KTH/Materialvetenskap

    Author : Martin Lind; Cecilia Johansson; [2015]
    Keywords : η Eta nitride; high nitrogen; aging; equilibrium condition; precipitations; nitrides; π Pi nitride; High Temperature Austenitic Stainless Steel; η Eta nitrid; hög kvävehalt; åldring; jämviktstillstånd; utskiljningar; nitrider; π Pi nitrid; austenitiska rostfria högtemperaturstål;

    Abstract : η (eta) nitride, Cr3Ni2SiN, is a precipitate found in high temperature austenitic stainless steel and is not yet included in Thermo-Calc steel database TCFE7. The aim of this thesis is to collect thermodynamic data to enable the addition of η nitride in the databases. READ MORE

  5. 4. Precipitation Study in a High Temperature Austenitic Stainless Steel using Low Voltage Energy Dispersive X-ray Spectroscopy

    University essay from KTH/Materialens processteknologi

    Author : Ali Gharehbaghi; [2012]
    Keywords : austenitic stainles steel; precipitation; EDS; low voltage EDS; micron-scale precipitates; sub-micron intragranular precipitates;

    Abstract : Precipitation of second phase particles is a key factor dominating the mechanical properties of high temperature alloys. In order to control and optimize the precipitation effect it is of great importance to study the role of alloying elements in the formation and stability of precipitates. READ MORE

  6. 5. Precipitation Study in a High Temperature Austenitic Stainless Steel using Low Voltage Energy Dispersive X-ray Spectroscopy

    University essay from KTH/Materialens processteknologi

    Author : Ali Gharehbaghi; [2012]
    Keywords : austenitic stainles steel; precipitation; EDS; low voltage EDS; micron-scale precipitates; sub-micron intragranular precipitates;

    Abstract : Precipitation of second phase particles is a key factor dominating the mechanical properties of high temperature alloys. In order to control and optimize the precipitation effect it is of great importance to study the role of alloying elements in the formation and stability of precipitates. READ MORE