7 Papers
38 Citations
A. Grill is an academic researcher from Ben-Gurion University of the Negev. The author has contributed to research in topics: Welding & Microstructure. The author has an hindex of 6, co-authored 7 publications.
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Papers
Heat flow, gap formation and break-outs in the continuous casting of steel slabs
TL;DR: In this article, a theoretical investigation of heat flow and gap formation in the mold of a continuous slab caster has been undertaken using a mathematical model, with the ultimate purpose of predicting the casting conditions which can lead to break-outs.
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Effect of arc vibration and current pulses on microstructure and mechanical properties of TIG tantalum welds
Y. Sharir,J. Pelleg,A. Grill +2 more
TL;DR: In this paper, the effect of the electromagnetic vibration of the arc and the influence of current pulses on the microstructure of welded tantalum sheets were investigated, and the optimum conditions of arc vibration and current pulses for refined micro-structure in the fusion zone and in the heat-affected zone (HAZ) were determined.
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Computation of temperatures in thin tantalum sheet welding
Y. Sharir,A. Grill,J. Pelleg +2 more
TL;DR: In this paper, a two-dimensional mathematical model was developed to calculate the temperature distribution during welding of thin tantalum sheets, which does not require any assumptions regarding the shape of the welding pool.
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Effect of current pulses on the temperature distribution and microstructure in TIG tantalum welds
TL;DR: The welding process employed for bonding metals by melting and solidification produces a joint which is generally inhomogeneous as discussed by the authors, where the micro structure of the fused zone and its adjacent heat affected zone, HAZ, is usually different from the microstructure of the parent metal, obtained by mechanical working or heat treatment.
20
Effect of arc oscillations on the temperature distribution and microstructure in GTA tantalum welds
TL;DR: In this article, a two-dimensional mathematical model was developed to calculate the thermal history in thin tantalum sheets, welded with arc oscillations, based on the finite difference solution of the unsteady heat flow equation.
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