Hot tearing
Modeling of Stress, Distortion, and Hot Tearing
... 7 Hot tearing analysis Hot tear crack formation is one of the most important consequences of stress during ...solidification. Hot tearing is caused by a combination of tensile stress ...
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Hot tearing of aluminum-copper B206 alloys with iron and silicon additions
... to hot tearing than alloy ...better hot tearing resistance as this was observed ...the hot tearing criterion proposed by Katgerman, taking as determinant, the amount of secondary ...
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Ex situ measurement of strain associated with hot tearing in AZ91D and AE42 magnesium alloys using neutron diffraction
... of hot tearing during casting or welding of commercial alloys remains a challenge for numerous in- dustrial ...of hot tearing in two magnesium ...and hot tearing, while for the ...
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Study of Hot Tearing During Steel Solidification Through Ingot Punching Test and Its Numerical Simulation
... proposed hot tearing criteria based on thermal considerations [ 9 ], solid mechanics [10-15] or solid and fluid mechanics ...those hot tearing criteria for steels [ 9 , 10, 14, 16] by means of ...
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Solidification macroprocesses - Thermal-mechanical Modeling of Stress, Distortion and Hot Tearing)
... of hot tears with segregated liquid alloy can cause internal defects that are just as serious as exposed surface ...The hot tearing of aluminum alloys is ...
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Influence of zirconium and scandium on the microstructure, tensile properties, and hot-tearing susceptibility of Al-2WT%Cu-based alloys
... (A319 alloy).8 9 Figure 2.3 Microstructure of B319.1 alloy at cooling rate of 0.3°C/s, showing the AlsMggSiéCua phase grown out from AlaCu particles.5 10 Figure 2.4 Microstructure of as-[r] ...
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Modeling Hot Tearing during Solidification of Steels: Assessment and Improvement of Macroscopic Criteria through the Analysis of Two Experimental Tests
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Relativistic rapidly differentially rotating hot neutron stars
... The behavior and composition of matter at the large densities and temperatures of a proto-neutron star, is still largely unknown, and is not easy to study, as it is not possible to reproduce such extreme conditions in ...
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Effect of the curvature and the β parameter on the nonlinear dynamics of a drift tearing magnetic island
... effect of the β parameter on the average stresses is shown (from t = 15 000τ A to t = 30 000τ A ). The amplification of the stresses leads to the nonlinear generation of the mean flows and hence considerably affects the ...
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Demolding of hot embossed polymer microstructures
... The high-fidelity replication of nano-scale surface textures often observed in hot embossing also suggests that mechanical interaction of asperities contributes to adhesion. If mold features are undercut (Figure ...
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Venus : Observe it while it's hot !
... VENUS: OBSERVE IT WHILE IT’S HOT! K.L. Jessup , Southwest Research Institute, Boulder, CO, USA (jessup@boulder.swri.edu), F. Mills, Space Science Institute, Boulder, CO, USA, S. Limaye, University of ...
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Plasmonic Hot Printing in Gold Nanoprisms
... plasmon-mediated hot printing not only provides a direct SP-LDOS imaging technique in complex 2D structures, but also opens a general way to confine heat generation at the nanoscale and even to arbitrarily select ...
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Corrosion Investigation Domestic Hot Water Tanks
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Creep of olivine during hot-pressing.
... The final density reached by any specimen is determined by the grain size, temperature, and stress conditions of the. test; as a final density is approached for any gi[r] ...
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Characterization of hot cathode helimak plasma
... By using the probe measurements as well as the total emitted current as a crude measure of the plasma properties, the machine operating parameters can be varied [r] ...
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Modeling of Large Area Hot Embossing
... 1. Introduction For the first time and independently of [1], embossing technology for replicating microstructures was applied by the Institute for Microstructure Technology of Forschungszentrum Karlsruhe in the early ...
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WASP-43b: The closest-orbiting hot Jupiter
... of hot Jupiters at short orbital periods occurs near 2 Roche radii (2 aR), which is the radius at which planets scattered into eccentric orbits from much further out would tend to circular- ...the hot ...
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Detection and characterization of transiting hot Jupiters
... ated brown dwarfs detected by RV surveys. This powerful method has unambiguously revealed the presence of CO and H2O in several hot Jupiters’ atmospheres (see e.g. Birkby et al. 2013 , de Kok et al. 2013 , Brogi ...
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HOT CARRIER SOLAR CELLS : IN THE MAKING ?
... The hot carrier solar cell (HCSC) is an attractive concept allowing a potential efficiency close to the thermodynamical limit [1], with a relatively simple structure (see figure ...
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Multifragmentation and phase transition for hot nuclei
... 20% for QF and QP sources, and generalized asymmetry: A Z = σ Z /(hZi q M f rag − 1). QF sources have larger normalized mean fragment multiplicities and lower values for generalized asymmetry. An explanation of those ...
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