Browsing NTNU Open by Author "Ragnvaldsen, Olav"
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3D non-isothermal phase-field simulation of microstructure evolution during selective laser sintering
Yang, Yangyiwei; Ragnvaldsen, Olav; Bai, Yang; Yi, Min; Xu, Bai-Xiang (Journal article; Peer reviewed, 2019)During selective laser sintering (SLS), the microstructure evolution and local temperature variation interact mutually. Application of conventional isothermal sintering model is thereby insufficient to describe SLS. In ... -
Characterisation of an aluminium matrix nanocomposite wire manufactured by screw extrusion
Ragnvaldsen, Olav (Master thesis, 2019)Kontinuerleg skrueekstrusjon av metaller (Metal Continuous Scew Extrusion, MCSE) er ein nyutvikla, fast tilstands produksjonsmetode, som tilrettelegg for framstilling av metallegeringar og komposittar med nye eigenskapar. ... -
Wire and Arc Additive Manufacturing with TiC-Nanoparticle Reinforced AA5183 Alloy
Langelandsvik, Geir; Ragnvaldsen, Olav; Flåm, Jan Eskil; Akselsen, Odd Magne; Roven, Hans Jørgen (Peer reviewed; Journal article, 2020)Wire and arc additive manufacturing of aluminium-ceramic composites shows great potential to produce high strength materials. By incorporation of nanoparticles in the feedstock wire, fine-grained material with low ...