Sökning: "UTS."

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet UTS..

1. 1. The role of primary austenite morphology in cast iron

   Författare :Juan Carlos Hernando; Attila Diószegi; Arne Dahle; Jessica Elfsberg; Roberto Boeri; Jönköping University; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solidification; Cast Iron; Primary Austenite; Microstructure Evolution; Coarsening; LGI; CGI; SGI; UTS; stelning; gjutjärn; primär austenit; mikrostrukturbildning; förgrovning; LGI; CGI; SGI; UTS;

   Sammanfattning : Automotive industry products portfolio includes a wide variety of complex-shaped cast iron products, such as truck engine components. Urged by strict environmental regulations on emissions, these components constantly need to combine higher demands on performance with lighter designs. LÄS MER

3. 2. Machinability Testing of Materials in Metal Cutting with Focus on Compacted Graphite Iron and Cutting Fluids

   Författare :Varun Nayyar; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; UTS.; Boring; Drilling; Cutting Fluid; Turning; Milling; Force; Wear; Force; Torque; Compressed air; CGI; Hardness; Tool Life; Material Properties; Chip Microstructure; Tapping;

   Sammanfattning : Due to the stringent demands for lower emission from trucks require better mechanical properties of the material to be used in the engines. Better efficiency necessitates higher peak pressure in the engines and for traditionally used material, Flake Graphite Iron (FGI), the mechanical properties starts to reach the limit of what the material can withstand. LÄS MER

4. 3. Dendritic morphology and ultimate tensile strength of pearlitic lamellar graphite iron

   Författare :Vasilios Fourlakidis; Attila Diószegi; Carlos A. Silva Ribeiro; Jönköping University; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lamellar graphite iron; Primary austenite dendrite; Ultimate tensile strength; Microstructure model;

   Sammanfattning : The continued development, of cylinder blocks and cylinder heads for heavy truck engines that are made of lamellar graphite iron (LGI) is focused on achieving high ultimate tensile strength (UTS) whilst conforming to environmental regulations. The purpose of this work is to further improve the tensile strength as well as the predictive engineering tools for optimization of LGI aimed to enhance the efforts for producing lighter and sustainable components without sacrificing performance. LÄS MER

5. 4. On the microstructure and mechanical properties of Mg-Al alloys

   Författare :Haiping Cao; Linköpings universitet; []
   Nyckelord :Mg-AI; microstructure; mechanical properties; divorced degree; modeling; mould constraint; segregation band; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The microstructural features and the mechanical properties of binary Mg-Al alloys have been investigated by using a gradient solidification technique. Homogeneous and nearly defect-free samples were produced under well controlled cooling conditions, through which the microstructural characteristics as well as the relationships between microstructure and mechanical properties in Mg-AI alloys were precisely defined. LÄS MER

7. 5. Stainless steels fabricated by laser melting : Scaled-down structural hierarchies and microstructural heterogeneities

   Författare :Kamran Saeidi; Zhijian Shen; Xiaoxu Huang; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Selective laser melting; Stainless steel; Structural hierarchies; Microstructure heterogeneity; Mechanical properties; Materials Chemistry; materialkemi;

   Sammanfattning : Additive manufacturing is revolutionizing the way of production and use of materials. The clear tendency for shifting from mass production to individual production of net-shape components has encouraged using selective laser melting (SLM) or electron beam melting (EBM). LÄS MER