Essays about: "Leo Hultén"

Found 2 essays containing the words Leo Hultén.

1. 1. 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

3. 2. Investigation and Evaluation of Metal Powder Characterization Techniques : Currently available at the KTH Department of Material Science and Engineering

   University essay from KTH/Materialvetenskap

   Author : Leo Hultén; Philip Jansson; [2018]
   Keywords : Powder Metallurgy; Metal Powder Characterisation; Evaluation; Investigation; Metal Powder Characterisation Techniques; assessment;

   Abstract : The KTH Department of Materials Science and Engineering has lacked powder metallurgy research for many years, and as this field is constantly gaining in importance, such research needs to be reestablished. This requires the department to be able to accurately and efficiently characterize the properties of a powder, such as size distribution and composition, and in the short term, this needs to be done using non-specialized equipment. READ MORE