ttp://iaeme.com/Home/journal/IJARET 377 editor@iaeme.com h International Journal Advanced Research Engineering and Technology (IJARET) of in Volume 12, Issue 2, February 2021, pp. 3 -385 Article ID: IJARET_12_02_035 77 Available online ttp://iaeme.com/Home/issue/IJARET?Volume=12&Issue=2 at h ISSN Print: 0976-6480 and ISSN Online: 0976-6499 DOI: 10.34218/IJARET.12.2.2020.035 © IAEME Publication Indexed Scopus EFFECT OF SURFACTANT ON THE CORROSION BEHAVIOUR OF MAGNESIUM ALLOY SURFACE COATED WITH ELECTROLESS -P NI Motilal Lakavat PhD Scholar, Lincoln University College, Selangor Darul Ehsan, Malaysia Dr Amiya Bhaumik Professor, Department of Mechanical Engineering, Lincoln University College, Selangor Darul Ehsan, Malaysia. Dr Elansezhian Rasu Professor, Department of Mechanical Engineering, Pondicherry Engineering College, Pondicherry, India. ABSTRACT In order to improve the wear and corrosion behaviour for the alloys, the coating is found as the most suitable method. -base alloys have a wide range of industrial Mg application. These alloys show a high specific strength but poor wear and corrosion resistance. In the present investigation, -P coating was done on magnesium Ni aluminium alloy composite by dipping the samples into Nickel sulphate bath during the presence of the surfactant. The mechanism of -P deposits was studied by using Ni scanning electron microscope (SEM). Effect of surfactant with the different amount on the corrosion behaviour was studied. Surfactants reduce the surface tension between the particles by reducing the chances of gathering selective laser sintering (SLS) and cetyl trimethyl ammonium bromide (CTAB) resulting in the increase in the coating efficiency up to 90%. Proper concentration of the SLS and CTAB results in minimum contact angle and the proper wetting surface was obtained. Amount of proper concentration of the SLS and CTAB results in the reduction of the surface tension which may further results in the reduction of the priorities of electroless Ni-P coating from the surface. Key words: Surfactants; SLS; SEM; CTAB; Mg Al Substrate