Sökning: "high-speed steels"
Visar resultat 1 - 5 av 17 avhandlingar innehållade orden high-speed steels.
1. Phase equilibria and thermodynamic properties of high-alloy tool steels : theoretical and experimental approach
Sammanfattning : The recent development of tool steels and high-speed steels has led to a significant increase in alloy additions, such as Co, Cr, Mo, N, V, and W. Knowledge about the phase relations in these multicomponent alloys, that is, the relative stability between different carbides or the solubility of different elements in the carbides and in the matrix phase, is essential for understanding the behaviour of these alloys in heat treatments. LÄS MER
2. Surface and Inner Deformation during Shape Rolling of High Speed Steels
Sammanfattning : Shape rolling is a common manufacturing process used to produce long products i.e. bars and wire. One of the problems that might occur during rolling is defect formation leading to rejection of the finished product. LÄS MER
3. Wear mechanisms and tool life of high speed steels related to microstructure
Sammanfattning : .... LÄS MER
4. Microstructures and properties of powder metallurgy high alloy steels
Sammanfattning : .... LÄS MER
5. Mechanical properties and microstructure of laser sintered and starch consolidated iron-based powders
Sammanfattning : In powder metallurgy research field, Direct Metal Laser Sintering (DMLS) and Metal Powder Starch Consolidation (MPSC) are relatively new rapid forming techniques to fabricate complex and near net-shaped components. The working principles of DMLS are to melt and fuse metal powder layer by layer in computer controlled systems to pile up components like three dimensional printing. LÄS MER