Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

10.3791/59300 ◽  
2019 ◽  
Author(s):  
Daren A. Watson ◽  
Jeremy L. Stephen ◽  
Andrew K. Dickerson
Keyword(s):  
Liquid Pool ◽  
Surface Conditions ◽  
Falling Spheres ◽  
Free Falling

Study of two free-falling spheres interaction by coupled SPH–DEM method

2021 ◽  
Author(s):  
Li Zou ◽  
Jia Zhao Sun ◽  
Zhe Sun ◽  
Zong Bing Yu ◽  
Huai Bin Zhao
Keyword(s):  
Falling Spheres ◽  
Free Falling

Measurement of effective viscosity of two-phase flow using free-falling spheres

2003 ◽  
Vol 2003.78 (0) ◽  
pp. _14-11_-_14-12_
Author(s):  
Hiroshi OIWA ◽  
Masaaki ISHIKAWA ◽  
Yuichi MURAI ◽  
Fujio YAMAMOTO
Keyword(s):  
Effective Viscosity ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Falling Spheres ◽  
Free Falling

The oxidation of Inconel alloy MA754 at low oxidation potential

1983 ◽  
Vol 41 ◽  
pp. 218-219
Author(s):  
D. N. Braski ◽  
P. D. Goodell ◽  
J. V. Cathcart ◽  
R. H. Kane
Keyword(s):  
Surface Layer ◽  
Oxidation Potential ◽  
Metal Interface ◽  
Elevated Temperature Strength ◽  
Surface Conditions ◽  
Inconel Alloy ◽  
Inco Alloy ◽  
Resistance To Oxidation ◽  
Oxide Particles ◽  
Cold Worked

It has been known for some time that the addition of small oxide particles to an 80 Ni—20 Cr alloy not only increases its elevated-temperature strength, but also markedly improves its resistance to oxidation. The mechanism by which the oxide dispersoid enhances the oxidation resistance is being studied collaboratively by ORNL and INCO Alloy Products Company.Initial experiments were performed using INCONEL alloy MA754, which is nominally: 78 Ni, 20 Cr, 0.05 C, 0.3 Al, 0.5 Ti, 1.0 Fe, and 0.6 Y2O3 (wt %).Small disks (3 mm diam × 0.38 mm thick) were cut from MA754 plate stock and prepared with two different surface conditions. The first was prepared by mechanically polishing one side of a disk through 0.5 μm diamond on a syntron polisher while the second used an additional sulfuric acid-methanol electropolishing treatment to remove the cold-worked surface layer. Disks having both surface treatments were oxidized in a radiantly heated furnace for 30 s at 1000°C. Three different environments were investigated: hydrogen with nominal dew points of 0°C, —25°C, and —55°C. The oxide particles and films were examined in TEM by using extraction replicas (carbon) and by backpolishing to the oxide/metal interface. The particles were analyzed by EDS and SAD.

EFFECT OF SURFACE CONDITIONS ON COERCIVITIES FOR Nd-Fe-B MAGNETS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-641-C8-642
Author(s):  
Y. Otani ◽  
H. Miyajima ◽  
S. Chikazumi ◽  
S. Hirosawa ◽  
M. Sagawa
Keyword(s):  
Surface Conditions ◽  
Effect Of Surface
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