Author
Tungky Subroto
Other affiliations: Max Planck Society, Delft University of Technology
Bio: Tungky Subroto is an academic researcher from Brunel University London. The author has contributed to research in topics: Cavitation & Intermetallic. The author has an hindex of 8, co-authored 34 publications receiving 263 citations. Previous affiliations of Tungky Subroto include Max Planck Society & Delft University of Technology.
Papers
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TL;DR: An extensive research programme into fundamental mechanisms of cavitation melt processing using state-of-the-art and unique facilities and methodologies is undertaken, providing valuable new insights and knowledge that are essential for upscaling ultrasonic melt processing to industrial level.
109 citations
TL;DR: In this article, the 3D internal architecture of PEO coated Mg via synchrotron-based microtomography was investigated to unveil the formation of the coating porosity and potential incorporation of functional elements in the pores.
63 citations
TL;DR: In this article, the authors evaluate the mechanical properties of primary Al3Zr intermetallics by nano-indentation experiments and correlate those with in-situ high-speed imaging (of up to 1 Mfps) of their fragmentation process by laser-induced cavitation (single bubble) and by acoustic cavitation in water.
40 citations
TL;DR: In this paper, high-speed camera observations of bubble evolution and emulsion droplets formation in oil and water were used to capture in real-time the emulsification process, while experiments with different gas concentrations were carried out to investigate the effect of gas bubbles on droplet size.
23 citations
21 Aug 2012-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this article, the authors examined the effect of various melt feeding schemes and casting speeds on the evolution of microstructure of AA7050 casting billets and found that grain size is strongly influenced by the casting speed and distribution of grain sizes across the billet diameter.
Abstract: Direct-chill (DC) casting billets of an AA7050 alloy produced with different melt feeding schemes and casting speeds were examined in order to reveal the effect of these factors on the evolution of microstructure. Experimental results show that grain size is strongly influenced by the casting speed. In addition, the distribution of grain sizes across the billet diameter is mostly determined by melt feeding scheme. Grains tend to coarsen towards the center of a billet cast with the semi-horizontal melt feeding, while upon vertical melt feeding the minimum grain size was observed in the center of the billet. Computer simulations were preformed to reveal sump profiles and flow patterns during casting under different melt feeding schemes and casting speeds. The results show that solidification front and velocity distribution of the melt in the liquid and slurry zones are very different under different melt feeding scheme. The final grain structure and the grain size distribution in a DC casting billet is a result of a combination of fragmentation effects in the slurry zone and the cooling rate in the solidification range.
16 citations
Cited by
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
Book•
01 Jan 1994
254 citations
TL;DR: In this paper, a review described a couple of the scientific principles including transient discharge behavior at breakdown, nucleation and growth of inorganic layer, and electrophoresis for incorporating inorganic particle.
212 citations
TL;DR: In this paper, the advantages, shortcomings and applicability of commonly used corrosive media for corrosion testing of bio-absorbable metallic materials are discussed, and media selection criteria for verified corrosion test protocols are outlined.
120 citations
TL;DR: In this article, the individual influence and synergy of simulated body fluid components on the corrosion of commercially pure Mg are investigated and the results demonstrate that corrosion acceleration in presence of the synthetic pH buffer, Tris/HCl, is attributed to the combined effect of three factors: increased Cl− concentration, complexation of Mg2+ and Ca2+, and consumption of OH− needed for products formation.
95 citations