Sökning: "hardmetal"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet hardmetal.

1. 1. Insights into wear and deformation of alternative binder hardmetals

   Författare :Lisa Toller-Nordström; Susanne Norgren; Ben Britton; Uppsala universitet; []
   Nyckelord :hardmetal; cemented carbide; alternative binders; steel turning; electron microscopy; electron diffraction; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

   Sammanfattning : This work presents new insights into how hardmetals with alternative binders as well as cobalt based references react to wear and deformation. The main focus has been on hardmetals for steel turning, but also on studying certain fundamental properties of the new binder materials. LÄS MER

3. 2. Alternative binder hardmetals for steel turning

   Författare :Lisa Toller; Susanne Norgren; Hans-Olof Andrén; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hardmetal; cemented carbide; alternative binder; steel turning; scratch testing; plastic deformation; EBSD; transformation toughening; Teknisk fysik med inriktning mot tribomaterial; Engineering Science with specialization in Tribo Materials;

   Sammanfattning : The goal of this work is to understand how the wear and deformation mechanisms of hardmetalinserts change when the cobalt binder phase is replaced with a dierent metal or analloy. The focus is on inserts for steel turning. The work presented in this licentiate thesisconsists of the rst steps. LÄS MER

4. 3. Surface properties and debinding mechanisms in hardmetal injection moulding

   Författare :Anna Warren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : .... LÄS MER

5. 4. Modelling of solid stage sintering of hardmetal using a mesomechanics approach

   Författare :Lennart Mähler; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : .... LÄS MER

7. 5. On the Modelling of Solid Phase Sintering of Hardmetal Based on Viscoplasticity

   Författare :Lennart Mähler; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis is primarily concerned with issues related to the modelling of sintering of hardmetal, which is composed of WC-grains that are embedded in a Co-binder. The aims are to develop a constitutive model framework and computational tools by which it is possible, in a unified manner, to simulate the two subsequent steps of cold compaction and (free) sintering. LÄS MER