Sökning: "Ms-temperature"

Hittade 2 uppsatser innehållade ordet Ms-temperature.

1. 1. Development of a heat treatment method to form a duplex microstructure of lower bainite and martensite in AISI 4140 stee

   Master-uppsats, KTH/Materialvetenskap

   Författare :Erik Claesson; [2014]
   Nyckelord :AISI 4140; 326C; 326F; Isothermal heat treatment; Martensite; Bainite; Molten salt; vacuum furnace; gas quenching.;

   Sammanfattning : Research on bainite and martensite structures has indicated that lower bainite needles have a refining effect on the lath martensitic structure. Lower bainte needles partitions prior austenite grains and will consequently have a refining effect on the subsequent formed lath martensite. LÄS MER

3. 2. The effect of driving force in Gibbs energy on the fraction of martensite

   Kandidat-uppsats, KTH/Materialvetenskap

   Författare :Erik Andersson; Andreas Johansson; [2013]
   Nyckelord :martensite; model; driving force; Gibbs energy; fraction; Ms-temperature;

   Sammanfattning : The background to this bachelor thesis is an on-going project within the VINN Excellence Center Hero-m. The task in this thesis is to perform a literature survey about the martensite transformation and investigate how the resulting fraction depends on cooling below the Ms-temperature. LÄS MER