L
Lars Arnberg
Researcher at Norwegian University of Science and Technology
Publications - 216
Citations - 6311
Lars Arnberg is an academic researcher from Norwegian University of Science and Technology. The author has contributed to research in topics: Silicon & Alloy. The author has an hindex of 42, co-authored 209 publications receiving 5499 citations. Previous affiliations of Lars Arnberg include Norwegian Institute of Technology & Royal Institute of Technology.
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In situ observations of dendritic fragmentation due to local solute-enrichment during directional solidification of an aluminum alloy
TL;DR: In this paper, it was found that streaming of solute-enriched liquid at the tip of high-order branches promotes growth by local undercooling, which causes solute pile-up at the roots of the branches.
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Quantitative study on the precipitation behavior of dispersoids in DC-cast AA3003 alloy during heating and homogenization
Yanjun Li,Lars Arnberg +1 more
TL;DR: In this paper, the volume fraction of dispersoids precipitated during heating measured from TEM images is in good agreement with that calculated from electrical conductivity data, and the evolution of dispersoid during heat treatment is controlled by nucleation, growth, dissolution and coarsening.
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Time Resolved X-Ray Imaging of Dendritic Growth in Binary Alloys
TL;DR: In this paper, the authors used direct beam x-ray imaging, with intense coherent monochromatic synchrotron radiation and a fast readout low noise detector, for in situ studies of cellular and dendritic solidification of Sn-Pb alloys.
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Crystal fragmentation and columnar-to-equiaxed transitions in Al-Cu studied by synchrotron X-ray video microscopy
TL;DR: In this paper, the authors present observations on dendrite fragmentation from columnar fronts in Al-Cu and subsequent transport phenomena, and demonstrate that these models differ substantially both with respect to detachment frequency and the ability for detached fragments to cause eventual columnar to equiaxed transitions.
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An investigation of fusion zone microstructures in electron beam welding of copper–stainless steel
TL;DR: In this article, a study of three different welded joints produced by electron beam welding dissimilar materials was presented, which showed complex heterogeneous fusion zone microstructures characterized both by rapid cooling and poor mixing of materials which contain main elements which are mutually insoluble.