By Laurentiu Nastac, Baicheng Liu, Hasse Fredriksson, Jacques Lacaze, Chun-Pyo Hong, Adrian Catalina, Andreas Buhrig-Polaczek, Charles Monroe, Adrian Sabau, Roxana Elena Ligia Ruxanda, Alan Luo, Subhayu Sen, Attila Diószegi
This assortment encompasses the next 4 parts: (1) Solidification processing: theoretical and experimental investigations of solidification procedures together with castings solidification, directional solidification of alloys, electromagnetic stirring, ultrasonic cavitation, mechanical vibration, lively cooling and heating, powder bed-electron beam melting additive production, and so forth. for processing of metals, polymers and composite fabrics; (2) Microstructure Evolution: theoretical and experimental experiences concerning microstructure evolution of fabrics together with prediction of solidification-related defects and particle pushing/engulfment facets; (3) Novel Casting and Molding approaches: modeling and experimental facets together with excessive strain die casting, everlasting casting, centrifugal casting, low strain casting, 3D silica sand mildew printing, etc.; and (4) forged iron: all features regarding forged iron characterization, computational and analytical modeling, and processing.
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Extra info for Advances in the Science and Engineering of Casting Solidification: An MPMD Symposium Honoring Doru Michael Stefanescu
The paper is a summury of the lecture given at the conference. The paper will mostly present results form alloys solidifiing by formation of dendrite crystals. Experiments and Results Introduction: A solidifiction process are often studied by thermal analysis or by unidirectional solidification experiments. During the thermal analysis the heat of solidification as well as the solidification temperaure can be found. Mostly it is interesting to measure how far below the equilibrium temperature the solidification starts and occure.
01. ???????? is the surface tension between the liquid and the gas. 39 (12) 2 where ???????????????????????????????? is vapor pressure . Algorithm The wave equation (7) is solved using the leapfrog scheme with a time step of 1 µs for a simulation time of 1 ms. The minimum and maximum acoustic pressures in the domain are stored at the end of the simulation, to be used in the source terms (10) and (11) respectively in the cavitation run. The cavitation model is then run for a simulation time of 20 s, with a time step of 1 ms.
0 MPa. The inlet and outlet are at the low and high y boundaries respectively. 01 m s-1 in the y direction. The launder problem is solved for both water at 20 ºC and aluminium at 700 ºC; both material properties are given in Table 1. The launder boundaries are assumed to be fully reflective to sound waves. The distance between the baffles is a parameter, varied as a function of the sound wavelength. 4 cm, and in aluminium, the wavelength is 23 cm. 5 ???????? using the procedure described in the theory section.
Advances in the Science and Engineering of Casting Solidification: An MPMD Symposium Honoring Doru Michael Stefanescu by Laurentiu Nastac, Baicheng Liu, Hasse Fredriksson, Jacques Lacaze, Chun-Pyo Hong, Adrian Catalina, Andreas Buhrig-Polaczek, Charles Monroe, Adrian Sabau, Roxana Elena Ligia Ruxanda, Alan Luo, Subhayu Sen, Attila Diószegi