Essays about: "nickel alloys"

Showing result 11 - 15 of 35 essays containing the words nickel alloys.

1. 11. Modeling of Precipitation by Structural Phase-Field Crystal Method

   University essay from Malmö universitet/Institutionen för materialvetenskap och tillämpad matematik (MTM)

   Author : Jacob Holmberg-Kasa; [2021]
   Keywords : strain-age cracking; SAC; structural phase-field crystal; XPFC; nickel-based alloys; precipitation;

   Abstract : Nickel-based alloys are used in components such gas turbines within the aerospace industry and electric power generation due to its high tensile, rapture and creep strength. Increasing the efficiency of gas turbines are crucial to reduce emissions within the aerospace industry and increasing power gain for electric power generation. READ MORE

3. 12. Evaluation of the Effect of Non-Metallic Inclusions on the Corrosion Resistance of Stainless Steels and Nickel-based Alloys

   University essay from KTH/Materialvetenskap

   Author : Emil Brisenmark; Jane Jönsson Valencik; [2020]
   Keywords : ;

   Abstract : Non-metallic inclusions (NMI) are small impurities that can always be found in steel and other materials. NMIs are of great importance because they may negatively impact various properties of the steel, depending on their composition, morphology and numbers. READ MORE

4. 13. Influence of matrix and alloying on the high cycle fatigue properties of compacted graphite iron for cylinder heads

   University essay from KTH/Hållfasthetslära

   Author : Erik From; [2020]
   Keywords : ;

   Abstract : Continued improvements in combustion processes, introduction of biofuels, decreasing fuel consumption and increasing specific power will inevitably lead to an increase of the combustion pressure, which can be accompanied with a temperature increase. This will increase the loading on many components and drives the development of materials more resistant to the harsh conditions close to the engine. READ MORE

5. 14. A theoretical study of longitudinal and transverse spin fluctuations in disordered Fe64Ni36 alloys

   University essay from Linköpings universitet/Teoretisk Fysik

   Author : Amanda Ehn; [2020]
   Keywords : INVAR effect; longitudinal spin fluctuations; transversal spin fluctuations;

   Abstract : That certain iron and nickel alloys exhibit an anomalously low thermal expansion of a wide temperature range has been observed since late 1800s, and this effect is known as the Invar effect. Since then, many theories have been proposed to explain the phenomenon. READ MORE

6. 15. Researching and Developing Universal Gas Purging Solutions

   University essay from KTH/Maskinkonstruktion (Avd.)

   Author : Ludvig Briheim; Dennis Ståhl; [2020]
   Keywords : Gas Purging Plug; Pipe Purging; Root Shielding; Shielding Gas; Pipe Welding; Rotgasplugg; Rotgasskydd; Skyddsgas; Rörsvetsning; Rörrengöring;

   Abstract : In the welding of more sensitive metals such as stainless steel, titanium and some specific nickel alloys, the presence and application of a protective gas is essential. Without the use of a nonreactive shielding gas, defects occur in or adjacent to the weld joint, which vary from light discoloration of the weld bead to the direct onset and propagation of cracks. READ MORE