TRIBOLOGICAL BEHAVIOR OF ELECTROLESS Ni–P COATINGS IN VARIOUS CORROSIVE ENVIRONMENTS

Bikash Panja, Suman Kalyan Das and Prasanta Sahoo
Additional contact information
Bikash Panja: Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, West Bengal, India
Suman Kalyan Das: Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, West Bengal, India
Prasanta Sahoo: Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, West Bengal, India

Surface Review and Letters (SRL), 2016, vol. 23, issue 05, 1-18

Abstract: The present paper deals with the study of tribological characteristics, viz. friction and wear, of electroless Ni–P coating in corrosive environments (brine, acidic and alkaline) by varying different coating process parameters as well as varying the tribological testing parameters, viz. applied load and speed. The optimized results of coating process parameters for minimum friction and wear performance of the coating are presented. Moreover, a detailed study of the tribological behavior of the coating is undertaken individually for the three corrosive environments. The results obtained are compared among each other and also with the dry condition test of the coating. It is found that the friction coefficient of Ni–P coating decreases with increase in load for all environments. In case of wear, the wear rate of Ni–P coating gradually increases with increase in load for all mediums but the same decreases after 40N in brine and alkaline mediums. However, for acidic solution, the wear rate shows a continuous increasing trend. It is observed that alkaline and brine environments are favorable from friction and wear point of view of the coating, respectively. Microstructure study of the coatings is also performed and the coating is found to be of cauliflower-like morphology. The coating also exhibits amorphous structure in as-deposited condition, which gradually turns crystalline with heat treatment.

Keywords: Electroless Ni–P coating; wear; friction; corrosive environments (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X16500402
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:23:y:2016:i:05:n:s0218625x16500402

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X16500402

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().