scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Influence of surfactants on the tribological behaviour of electroless Ni?P coatings

17 May 2010-International Journal of Surface Science and Engineering (Inderscience Publishers)-Vol. 4, Iss: 3, pp 258-268
TL;DR: In this paper, two surfactants namely sodium dodecyl sulphate and cetyl trimethyl ammonium bromide were added to the EN bath for the first time in a similar kind of study.
Abstract: Electroless nickel?phosphorus coating has been deposited onto plain carbon steel specimens by using an alkaline bath based on NiCl2 as source of nickel cations. The tribological behaviour under dry non-lubricated conditions has been evaluated by employing the pin-on-disc test method. Two surfactants namely sodium dodecyl sulphate and cetyl trimethyl ammonium bromide were added to the EN bath for the first time in the similar kind of study. The influence of the surfactants on the hardness, friction and wear behaviour of the coatings was investigated and compared against the samples produced without addition of surfactants.
Citations
More filters
Journal ArticleDOI
J. Sudagar1, Jianshe Lian1, Guangli Bi1, Jiang Jing1, Jiaan Liu1 
TL;DR: In this paper, the safer hydrogen halide was used to prepare the MgO-MgI2/MgBr2 layers onto AZ91 magnesium alloy in alkaline solution.
Abstract: The present research uses the safer hydrogen halide to prepare the MgO-MgI2/MgBr2 layers onto AZ91 magnesium alloy in alkaline solution. The water-soluble metal salts (MgI2/MgBr2) were not responsible for the corrosion protection; whereas Mg(OH)2 formed first and then converted to MgO by heat-treatments and this MgO was responsible for the corrosion protection. The electrochemical results showed that the development of MgO mitigated the corrosion process and improved the corrosion resistance. This new treatment was then used as a pre-treatment for further electroless nickel (EN) deposition and it showed the good corrosion current density and better corrosion potential on the magnesium substrate. This new treatment and EN depositions were characterised by XPS and SEM. The electrochemical polarisation and EIS test of these EN depositions were evaluated in 3.5 wt.% NaCl. In addition, pitting behaviour of these EN depositions were evaluated by linear sweep voltammetry test.

3 citations

Journal ArticleDOI
01 Oct 2018
TL;DR: Incorporation of fine nanoparticles and cationic surfactant (Aliquat 336) within an ENi-P matrix has given a new dimension to the field of nanocomposite coatings as discussed by the authors.
Abstract: Incorporation of fine nanoparticles and cationic surfactant (Aliquat 336) within an ENi–P matrix has given a new dimension to the field of nanocomposite coatings. It describes the surface engineeri...

2 citations


Cites background from "Influence of surfactants on the tri..."

  • ...The addition of cationic surfactant CTAB has shown to have improved the tribological properties of electroless Ni–P coatings.(17) However, very little literature is available related to the effects of cationic Aliquat 336 surfactant on the friction and wear characteristics of electroless Ni–P–ZnO nanocomposite deposits on AZ91 magnesium alloy to date....

    [...]

References
More filters
Journal ArticleDOI
TL;DR: In this article, the X-ray line profile analysis, differential scanning calorimetry and microhardness of nickel-phosphorus deposits were used to study the crystallization process of these deposits.

130 citations