Sökning: "Melting Solidification"
Visar resultat 1 - 5 av 31 avhandlingar innehållade orden Melting Solidification.
1. Defect Formation during Solidification in Grey Iron Castings
Sammanfattning : The presence of defects is of major concern in the production of grey iron castings. Some defects are merely an aesthetic problem while others can be detrimental for the performance of the component. Among the several possible defects, shrinkage porosity is one of the more challenging to understand and avoid. LÄS MER
2. Rapid solidification behaviour of Fe and Al based alloys
Sammanfattning : Rapid solidification experiment on Fe-Cr-Mo-Mn-Si-C alloy was performed to investigate metastable phases formed during the solidification. A wide range of cooling rate was used to analyse the sample from melt spinning technique (~107 K/s) to water quenching method (~102 K/s). LÄS MER
3. Validation and Application of CFD to Safety-Related Phenomena in Lead-Cooled Fast Reactors
Sammanfattning : Carbon-free nuclear power production can help to relieve the increasing energy demand in the world. New generation reactors with improved safety, sustainability, reliability, economy and security are being developed. Lead-cooled fast reactor (LFR) is one of them. LÄS MER
4. Characterisation of Nickel-Based Superalloys Manufactued by Electron Beam Melting
Sammanfattning : Nickel-based superalloys have been manufactured by electron beam melting (EBM). EBM is an additive manufacturing process for direct production of metal parts. The part is build up by successive melting of metal powder layers in a vacuum chamber using electron beam. LÄS MER
5. Volume Change Effects during Solidification of Alloys
Sammanfattning : Volume change during solidification is an important concept in achieving of casting soundness. The solidification shrinkage can cause different defects in the ingot casting as well as the shape casting. The volume change due to phase transformation during solidification is the other concept which has to be studied. LÄS MER