EFFECT OF MICROSTRUCTURE AND PHOSPHORUS CONTENT ON THE CORROSION BEHAVIOUR OF ELECTROLESS NICKEL-PHOSPHORUS COATINGS

2006 ◽  
Vol 45 (3) ◽  
pp. 295-302 ◽  
Author(s):  
N. DADVAND ◽  
W.F. CALEY ◽  
G.J. KIPOUROS
2019 ◽  
Vol 26 (01) ◽  
pp. 1850130
Author(s):  
WANMIN LIU ◽  
QILONG LIU ◽  
LV XU ◽  
MULAN QIN ◽  
JIYONG DENG

A zero-emission electroless nickel plating bath was investigated, which consisted of nickel hypophosphite, hypophosphorous acid, lithium acetate, citric acid and maleic acid. The bath stability, bath life and plating rate were 68.0[Formula: see text]min, 8 cycles and 13.39[Formula: see text][Formula: see text]m/h, respectively. The Ni–P plating layer showed smooth appearance with lots of small continuous nodules, with 12.23[Formula: see text]wt.% phosphorus content. The electrochemical measurements showed that the deposit exhibited excellent corrosion resistance. All of these properties of the zero-emission plating bath and its deposit were better than those of the popular plating solution and its layer. It is most significant that the spent plating bath can be used directly as a raw material to prepare LiFePO4/C materials, which conforms to the concept of circular economy.


2014 ◽  
Vol 92 (4) ◽  
pp. 212-217 ◽  
Author(s):  
H. Liu ◽  
H. L. Yao ◽  
F. Viejo ◽  
G. Harrison ◽  
G. E. Thompson ◽  
...  

2013 ◽  
Vol 45 (10) ◽  
pp. 1597-1603 ◽  
Author(s):  
A. Laferrere ◽  
N. Parson ◽  
X. Zhou ◽  
G. Thompson

Author(s):  
Jeffrey Bulger ◽  
Jingli Luo

Three components are required for stress corrosion cracking: stress, an environment and a susceptible alloy. The environment that causes near-neutral-pH SCC has been established as a dilute bicarbonate environment and the effect of stress on this type of SCC has received a considerable amount of research; however, the third component, the susceptible alloy, has received little research. The effect of microstructure on near-neutral-pH SCC was investigated using the slow strain rate test. The effect of the microstructure on the corrosion properties is also investigated using polarization resistance tests, potentiodynamic scans and electrochemical impedance spectroscopy. The results indicate that the microstructure influences both the SCC and corrosion behaviour.


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