Effects of phosphorus on the stability of the passive state of Fe and Fe-Ni base glasses

1988 ◽  
Vol 39 (10) ◽  
pp. 453-462 ◽  
Author(s):  
H. Viefhaus ◽  
R. Möller ◽  
M. Janik-Czachor
Keyword(s):  
Passive State ◽  
The Stability

Effect of chlorides on the stability of the passive state of low Mn steels

1990 ◽  
Vol 41 (11) ◽  
pp. 618-622 ◽  
Author(s):  
A. Szummer ◽  
K. Lublińska ◽  
M. Janik-Czachor
Keyword(s):  
Passive State ◽  
The Stability

Anodic Polarization Characteristics Of Gold and Silver In Chloride and Sulfate Media

CORROSION ◽  
1963 ◽  
Vol 19 (4) ◽  
pp. 115t-119t ◽  
Author(s):  
F. P. A. ROBINSON ◽  
F. A. FROST
Keyword(s):  
Anodic Polarization ◽  
Current System ◽  
Anodic Polarization Curve ◽  
Chloride Ions ◽  
Passive State ◽  
Anode Reaction ◽  
Polarization Characteristics ◽  
Impressed Current ◽  
The Stability ◽  
A Current

Abstract The anodic polarization characteristics of gold and silver in chloride and sulfate media have been studied, employing potentiostatic techniques. It was found that gold produces an active-passive S-shaped curve, the form of which is not seriously affected by the presence of oxygen in the electrolyte. The stability of the passive state was greater in the sulfate than in the chloride media. Silver does not give a typical anodic polarization curve in NaCl solution, because formation of an AgCl film is the primary anode reaction. This film thickens and exfoliates at a current density of 2 a/sq ft. For this reason, silver could not be used as an inexpendable anode in an impressed current system containing chloride ions.

ChemInform Abstract: The Stability of the Passive State on Al-Mo Sputter-Deposited Glassy Metals.

ChemInform ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. no-no
Author(s):  
M. JANIK-CZACHOR ◽  
A. WOLOWIK ◽  
Z. WERNER
Keyword(s):  
Passive State ◽  
Glassy Metals ◽  
Sputter Deposited ◽  
The Stability

The stability of passive state of melt-spun amorphous chromium-base alloys

1990 ◽  
Vol 31 ◽  
pp. 355-360 ◽  
Author(s):  
A. Kawashima ◽  
B.-P. Zhang ◽  
H. Habazaki ◽  
K. Asami ◽  
K. Hashimoto
Keyword(s):  
Passive State ◽  
Melt Spun ◽  
The Stability

The stability of the passive state of iron–chromium alloys in sulphuric acid solution

1999 ◽  
Vol 41 (8) ◽  
pp. 1557-1584 ◽  
Author(s):  
M. Bojinov ◽  
I. Betova ◽  
G. Fabricius ◽  
T. Laitinen ◽  
R.Raicheff d ◽  
...  
Keyword(s):  
Acid Solution ◽  
Sulphuric Acid ◽  
Sulphuric Acid Solution ◽  
Passive State ◽  
Chromium Alloys ◽  
The Stability ◽  
Iron Chromium

The stability of the passive state on AlMo sputter-deposited glassy metals

1994 ◽  
Vol 36 (11) ◽  
pp. 1921-1923 ◽  
Author(s):  
M Janik-Czachor ◽  
A Wo&Ł ◽  
Z Werner
Keyword(s):  
Passive State ◽  
Glassy Metals ◽  
Sputter Deposited ◽  
The Stability

Open discussion

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti
Keyword(s):  
Buenos Aires ◽  
Large Mass ◽  
List Type ◽  
Common Phenomenon ◽  
Open Discussion ◽  
The Stability ◽  
Ring Nebulae

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.

Symmetric Multistep Methods Revisited: II. Numerical Experiments

1999 ◽  
Vol 173 ◽  
pp. 309-314 ◽  
Author(s):  
T. Fukushima
Keyword(s):  
Multistep Methods ◽  
Computational Time ◽  
Integration Time ◽  
Implicit Methods ◽  
Symmetric Methods ◽  
Celestial Bodies ◽  
The Stability ◽  
Predictor Corrector ◽  
Symmetric Multistep Methods ◽  
Integration Errors

AbstractBy using the stability condition and general formulas developed by Fukushima (1998 = Paper I) we discovered that, just as in the case of the explicit symmetric multistep methods (Quinlan and Tremaine, 1990), when integrating orbital motions of celestial bodies, the implicit symmetric multistep methods used in the predictor-corrector manner lead to integration errors in position which grow linearly with the integration time if the stepsizes adopted are sufficiently small and if the number of corrections is sufficiently large, say two or three. We confirmed also that the symmetric methods (explicit or implicit) would produce the stepsize-dependent instabilities/resonances, which was discovered by A. Toomre in 1991 and confirmed by G.D. Quinlan for some high order explicit methods. Although the implicit methods require twice or more computational time for the same stepsize than the explicit symmetric ones do, they seem to be preferable since they reduce these undesirable features significantly.

Uniformity of Magnification from Different Electron Microscopes

1967 ◽  
Vol 25 ◽  
pp. 32-33
Author(s):  
Godfrey C. Hoskins ◽  
V. Williams ◽  
V. Allison
Keyword(s):  
Diffraction Grating ◽  
The Other ◽  
Carbon Replica ◽  
Electron Microscopes ◽  
The Stability

The method demonstrated is an adaptation of a proven procedure for accurately determining the magnification of light photomicrographs. Because of the stability of modern electrical lenses, the method is shown to be directly applicable for providing precise reproducibility of magnification in various models of electron microscopes.A readily recognizable area of a carbon replica of a crossed-line diffraction grating is used as a standard. The same area of the standard was photographed in Phillips EM 200, Hitachi HU-11B2, and RCA EMU 3F electron microscopes at taps representative of the range of magnification of each. Negatives from one microscope were selected as guides and printed at convenient magnifications; then negatives from each of the other microscopes were projected to register with these prints. By deferring measurement to the print rather than comparing negatives, correspondence of magnification of the specimen in the three microscopes could be brought to within 2%.

Effect of Improved ThO2 Particle Dispersion in Nickel on High-Temperature Strength

1970 ◽  
Vol 28 ◽  
pp. 444-445
Author(s):  
E. R. Kimmel ◽  
H. L. Anthony ◽  
W. Scheithauer
Keyword(s):  
High Temperature ◽  
Metal Matrix ◽  
Oxide Particle ◽  
Oxide Phase ◽  
Dislocation Motion ◽  
Particle Dispersion ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Oxide Particles ◽  
The Stability

The strengthening effect at high temperature produced by a dispersed oxide phase in a metal matrix is seemingly dependent on at least two major contributors: oxide particle size and spatial distribution, and stability of the worked microstructure. These two are strongly interrelated. The stability of the microstructure is produced by polygonization of the worked structure forming low angle cell boundaries which become anchored by the dispersed oxide particles. The effect of the particles on strength is therefore twofold, in that they stabilize the worked microstructure and also hinder dislocation motion during loading.

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