Sökning: "TTT"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet TTT.

1. 1. Precipitation behavior of the super austenitic stainless steel SANICRO® 35 and the effect on impact toughness and pitting corrosion resistance

   Master-uppsats, KTH/Materialvetenskap

   Författare :Shunyi Li; [2022]
   Nyckelord :Super austenitic stainless steel; solid phase transformation; TTT diagram; impact toughness; critical pitting temperature; TC PRISMA simulation; Superaustenitiskt rostfritt stål; fastfasomvandling; TTT-diagram; slaghållfasthet; kritisk punktfrätningstemperatur; TC PRISMA simulering;

   Sammanfattning : This research extended the knowledge of the solid phase transformation and the resulting influence on impact toughness and pitting corrosion resistance in super austenitic stainless steel (SASS) SANICRO® 35. A time-temperature-transformation diagram (TTT diagram) was assembled by performing isothermal heat treatments in the temperature range of 650-1050 °C for different periods of time, ranging from 5 min to 500 min. LÄS MER

3. 2. Samverkan mot ökad punktlighet : Analys av TTT (Tillsammans för tåg i tid)

   Master-uppsats, KTH/Urbana och regionala studier

   Författare :Sophie Brisère; [2021]
   Nyckelord :Samverkan; branschsamarbete; järnväg; punktlighet; järnväg; tåg; TTT; Trafikverket;

   Sammanfattning : The railway in Sweden has problems with punctuality, which creates additional costs forpassengers, operators and the infrastructure, which is a problem since a single actor cannotsolve alone. It is then required that more actors join forces and collaborate and for thisreason the industry has started a collaboration forum called TTT (Together for trains ontime). LÄS MER

4. 3. Coupled flux nucleation model applied to the metallic glass AMZ4

   Master-uppsats, Malmö universitet/Institutionen för materialvetenskap och tillämpad matematik (MTM)

   Författare :Mattias Tidefelt; [2021]
   Nyckelord :Material science; numerical modeling; metallic glasses; classical nucleation theory;

   Sammanfattning : Additive manufacturing (AM), also known as 3D-printing, has made it possible to produce components made of bulk metallic glass (BMG) which have remarkable properties compared to parts made of conventional alloys. A metallic glass is a metastable noncrystalline alloy that form if a melt is quenched with a sufficient cooling rate. LÄS MER

5. 4. Understanding Effects of Isothermal Heat Treatments on Microstructure of LMD-w Titanium Alloy (Ti-6242) : On solution heat treated microstructure

   Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Noomi Linder; [2020]
   Nyckelord :Heat Treatments Isothermal Titanium Alloy Ti-6242 Ti6242 Ti-6Al-2Sn-4Zr-2Mo GKN;

   Sammanfattning : The use and knowledge of additive manufacturing technologies are rapidly growing. It is crucial to understand the processing-structure-property relationship, which is highly discussed when trying to understand the science of a material. One commonly used material in aerospace applications is titanium alloy, lately Ti-6Al-2Sn-4Zr-2Mo (Ti-6242). LÄS MER

7. 5. Understanding the Effect of Isothermal Heat Treatments on Microstructure of LMD-w Titanium Alloy (Ti-6242) - As-Built microstructure

   Master-uppsats, Högskolan Väst/Avdelningen för avverkande och additativa tillverkningsprocesser (AAT)

   Författare :Prakruth Harish; [2020]
   Nyckelord :Ti 6242; LMD-w; Isothermal transformation diagrams; Microstructure of Ti 624;

   Sammanfattning : The most widely used titanium alloy in the hot sections of a jet engine is Ti-6Al-2Sn-4Zr-2Mo (Ti-6242) and with the technological advancements additive manufacturing (AM) of Ti-6242 is of great interest. Although, there is not much published related to additively manufactured Ti-6242. LÄS MER