Sökning: "Bartek Kaplan"

Hittade 2 avhandlingar innehållade orden Bartek Kaplan.

1. 1. Equilibrium aspects of Cr-alloyed cemented carbides

   Författare :Bartek Kaplan; Malin Selleby; Armando F. Guillermet; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : In view of the extensive use of Cr as a grain growth inhibitor in WC-Co cemented carbides this thesis comprises a combined experimental and ab initio study of a number of critical issues pertaining to phase equilibria of the subsystems to the W-Co-Cr-C system.To be able to predict which of the stable Cr-carbides forms above the solubility limits of Cr and C in the fcc phase the respective solubility of Co in Cr23C6, Cr7C3 and Cr3C2 are investigated experimentally. LÄS MER

3. 2. Experimental and theoretical study of carbides in the Co-Cr-C system : Structure, alloying and stability

   Författare :Bartek Kaplan; Malin Selleby; Jan Qvick; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

   Sammanfattning : The research presented in this thesis explores the structure, alloying and stability of the carbides in the Co-Cr-C system by using the CALPHAD approach supported by experimental measurements and ab initio calculations.WC-Co based cemented carbide materials consist of hard WC grains and a ductile Co-based binder. LÄS MER