Theory of Passive Film Stability

2019 ◽  
Vol 2 (9) ◽  
pp. 73-81 ◽  
Author(s):  
Digby D. Macdonald
Keyword(s):  
Passive Film ◽  
Film Stability

scholarly journals A High-Performance Corrosion-Resistant Iron-Based Amorphous Metal - The Effects of Composition, Structure and Environment on Corrosion Resistance

2006 ◽  
Vol 985 ◽  
Author(s):  
Joseph Collin Farmer ◽  
J. Haslam ◽  
D. Day ◽  
T. Lian ◽  
C. Saw ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Passive Film ◽  
High Performance ◽  
Amorphous Metal ◽  
General Corrosion ◽  
Film Stability ◽  
Neutron Absorber ◽  
High Boron ◽  
Effective Neutron ◽  
Composition Structure

ABSTRACTThe passive film stability of several Fe-based amorphous metal formulations have been found to be comparable to that of high-performance Ni-based alloys, and superior to that of stainless steels, based on electrochemical measurements of the passive film breakdown potential and general corrosion rates. Chromium (Cr), molybdenum (Mo) and tungsten (W) provide corrosion resistance; boron (B) enables glass formation; and rare earths such as yttrium (Y) lower critical cooling rate (CCR). The high boron content of this particular amorphous metal also makes it an effective neutron absorber, and suitable for criticality control applications, as discussed in companion publications. Corrosion data for SAM2X5 (Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4) is discussed here.

scholarly journals General Corrosion and Passive Film Stability

2005 ◽  
Author(s):  
S Dixit ◽  
S Roberts ◽  
K Evans ◽  
T Wolery ◽  
S Carroll
Keyword(s):  
Passive Film ◽  
General Corrosion ◽  
Film Stability

The effect of ɳ-Ni3Ti precipitates and reversed austenite on the passive film stability of nickel-rich Custom 465 steel

2019 ◽  
Vol 154 ◽  
pp. 178-190 ◽  
Author(s):  
Li Wang ◽  
Chaofang Dong ◽  
Jizheng Yao ◽  
Zongbiao Dai ◽  
Cheng Man ◽  
...  
Keyword(s):  
Passive Film ◽  
Reversed Austenite ◽  
Film Stability

scholarly journals General Corrosion and Passive Film Stability

2005 ◽  
Author(s):  
C Orme ◽  
J Gray ◽  
J Hayes ◽  
L Wong ◽  
R Rebak ◽  
...  
Keyword(s):  
Passive Film ◽  
General Corrosion ◽  
Film Stability

scholarly journals The influence of bacteria on the passive film stability of 304 stainless steel

1999 ◽  
Vol 44 (26) ◽  
pp. 4685-4692 ◽  
Author(s):  
Kh.M Ismail ◽  
A Jayaraman ◽  
T.K Wood ◽  
J.C Earthman
Keyword(s):  
Stainless Steel ◽  
Passive Film ◽  
304 Stainless Steel ◽  
Film Stability

Corrosion Behaviors of Ultrapure Ferritic Stainless Steels in Simulated Urban Refuse Leachate

2011 ◽  
Vol 261-263 ◽  
pp. 749-752
Author(s):  
Li Yan Qin ◽  
Guang Wei Fan ◽  
Fang Hong Xu
Keyword(s):  
Stainless Steel ◽  
Passive Film ◽  
Stainless Steels ◽  
Open Circuit ◽  
Passive State ◽  
Film Stability ◽  
Ferritic Stainless Steels ◽  
Stainless Steel 304 ◽  
Corrosion Behaviors ◽  
Relaxation Curves

The corrosion behaviors of ultrapure ferritic stainless steels in simulated urban refuse leachate were investigated by means of different measurement methods including steady-state polarization curves, potentiostatic open-circuit relaxation curves and scanning electronic microscope. The results show that the ultrapure ferritic stainless steel 443, 444 and the austentic stainless steel 304 maintained good passive state after being immersed in the simulated leachate for 720h. The descending order of pitting resistance is 444>443>304. According to the passive film equivalent resistance Rp and the interface capacitance Cd obtained by fitting the potentiostatic open-circuit relaxation curves, the descending order of passive film stability is also 444>443>304.

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