Sökning: "Johnny Sjöström"

Hittade 2 avhandlingar innehållade orden Johnny Sjöström.

1. 1. Chromium martensitic hot-work tool steels : damage, performance and microstructure

   Författare :Johnny Sjöström; Jens Bergström; Farhad Rezai-Aria; Karlstads universitet; []
   Nyckelord :Hot-work tool steel; thermal fatigue; microstructure; Materialteknik; Materials Engineering;

   Sammanfattning : Chromium martensitic hot-work tool steel (AISI H13) is commonly used as die material in hot forming techniques such as die casting, hot rolling, extrusion and hot forging. They are developed to endure the severe conditions by high mechanical properties attained by a complex microstructure. LÄS MER

3. 2. Isothermal and Thermal Fatigue of Martensitic Chromium Hot-Work Tool Steels

   Författare :Johnny Sjöström; []
   Nyckelord :;

   Sammanfattning : A lot of our everyday products, e.g. car-parts and mobile phone covers, are shaped by using high temperature techniques, such as die casting, extrusion, forging or rolling. The die in all these forming processes play an important role, since it usually gives the object its final shape. LÄS MER