Kinetics of layer formation and corrosion processes of passive iron in acid solutions

1973 ◽  
Vol 18 (4) ◽  
pp. 321-326 ◽  
Author(s):  
K.J. Vetter ◽  
F. Gorn
1990 ◽  
Vol 87 ◽  
pp. 1597-1607 ◽  
Author(s):  
L Benedetti ◽  
M Borsari ◽  
C Fontanesi ◽  
G Battistuzzi Gavioli

2006 ◽  
Vol 80 (5) ◽  
pp. 726-731 ◽  
Author(s):  
A. V. Levanov ◽  
I. V. Kuskov ◽  
E. E. Antipenko ◽  
V. V. Lunin

2020 ◽  
Vol 992 ◽  
pp. 615-620
Author(s):  
Valeriy I. Ivanov ◽  
L.A. Konevtsov ◽  
V.F. Aulov

Electric spark of alloying – ESA – from the standpoint of materialogy, a new stage in the development of the materials science, is a method of surface hardening that refers to technologies meeting the new development vector of the materials science, including its most important sections – surface materialogy. As an anode material, an unconventional material for the electric-spark coating method (ESA) - rhenium is of practical interest for creating protective and hardening coatings. The results of studies of the formation modes by the method of ESA are given on the surface of steel grade 35 of the alloyed layer and its properties using the anodic material from rhenium is shown. The kinetics of the doped layer formation depending on the ESD regimes, their justification is shown. It is established that with an increase of the frequency of discharge pulses in the range of 1600>fcps>20 Hz, a trend to increase the thickness of the AL hav.AL is observed, and with an increase in energy 1.8>E>0.11 J, on the contrary, there is a trend of its decrease; the latter is associated with a decrease of the pulses frequency with the increase of energy. The obtained series of the efficiency of the ESA process make it possible to predict the achievement of the required parameters of the doped layer using Re as the anode material.


2011 ◽  
Vol 13 (5) ◽  
pp. 506-508 ◽  
Author(s):  
You-Jun Fan ◽  
Zhi-You Zhou ◽  
Chun-Hua Zhen ◽  
Sheng-Pei Chen ◽  
Shi-Gang Sun

CORROSION ◽  
1958 ◽  
Vol 14 (12) ◽  
pp. 34-38 ◽  
Author(s):  
T. G. OWE BERG

Abstract The reaction mechanisms for the absorption of hydrogen by metals from moist hydrogen gas and dilute acid solutions, for the desorption from metals of dissolved hydrogen in the presence of water and for hydrogen solubility and permeation under those conditions are discussed. Their kinetics are also given. Formulae are derived for rates and equilibria. These are compared with experimental data. The migration of H atoms in the metal is concluded to be associated with zero or nearly zero activation energy. Diffusion is rapid enough to maintain almost uniform distribution of H atoms in the metal during absorption and desorption under ordinary conditions. 3.8.4


1998 ◽  
Vol 53 (22) ◽  
pp. 3863-3874 ◽  
Author(s):  
Christopher N. Fredd ◽  
H. Scott Fogler

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