Pengaruh Konsentrasi Hipofosfit dan Waktu Pelapisan terhadap Karakteristik Mikrostruktur Lapisan Electroless Ni-P

Arini Nikitasari, Efendi Mabruri


The effect of various hypophosphite concentration and plating time on the microstructure characteristics of Ni-P electroless deposited coating is presented. The substrate used in this research was martensitic stainless steel. The microstructure characteristics were investigated for hypophosphite concentration (10 g/L; 20 g/L; 30 g/L) and plating time (30 min, 60 min, 120 min, 180 min) using scanning electron microscope (SEM). It was evaluated that morphology of Ni-P electroless coating is spheroidal. Grain size and structure density increased with plating time. Phosphor content of coating increased with hypophosphite concentration and plating time. The optimum nickel content is hypophosphite with concentration of 20 g/L. Layer thickness was proportional to the plating time. Hypophosphite concentration of 20 g/L and plating time of 120 min were the optimum condition for coating due to the uniformity of microstructure and component distribution.

Pengaruh variasi konsentrasi hipofosfit dan waktu pelapisan terhadap karakteristik mikrostrukur lapisan electroless Ni-P disajikan dalam artikel ini. Material yang digunakan pada penelitian ini adalah martensit stainless steel 420. Karakteristik mikrostruktur yang diteliti untuk konsentrasi hipofosfit (10 g/L; 20 g/L; 30 g/L) dan waktu pelapisan (30 min, 60 min, 120 min, 180 min) menggunakan scanning electron microscope (SEM). Diperoleh hasil bahwa morfologi lapisan electroless Ni-P yang terbentuk berbentuk bulat. Ukuran butir dan kerapatan struktur bertambah seiring dengan peningkatan waktu pelapisan. Kadar fosfor dalam lapisan meningkat dengan kenaikan kandungan hipofosfit dan waktu pelapisan. Kadar nikel dalam lapisan yang paling optimal adalah hipofosfit dengan konsentrasi 20 g/L. Ketebalan lapisan berbanding lurus dengan waktu pelapisan. Konsentrasi hipofosfit 20 g/L dan waktu pelapisan 120 menit adalah kondisi optimum untuk pelapisan karena menghasilkan lapisan dengan mikrostruktur dan distribusi komponen yang seragam.


martensit, stainless steel 420, morfologi, scanning electron microscope (SEM), electroless Ni-P

Full Text:



B. Panja and P. Sahoo, “Wear behavior of electroless Ni-P coatings in brine solution and optimization of coating parameters,” Procedia Technol., vol. 14, pp. 173–180, 2014.

I. Kwon, H. Kim, and S. Bum, “Journal of Industrial and Engineering Chemistry Optimization of barrel plating process for electroless Ni – P plating,” J. Ind. Eng. Chem., vol. 20, no. 5, pp. 3767–3774, 2014.

M. Zhang, S. Mu, Q. Guan, W. Li, and J. Du, “Applied Surface Science A high anticorrosive chromium-free conversion coating prepared with an alkaline conversion bath on electroless Ni – P coating ଝ,” Appl. Surf. Sci., vol. 349, no. 2015, pp. 108–115, 2017.

I. E. Ayoub, “Study of Electroless Ni-P Plating on Stainless Steel,” no. 1, pp. 13–16.

J. N. Balaraju, S. K. Seshadri, M. S. Division, N. A. Laboratories, and M. Centre, “Electroless Ni – P composite coatings,” pp. 807–816, 2003.

J. Wojewoda-budka, A. Wierzbicka-miernik, L. Litynska-dobrzynska, and M. J. Szczerba, “Electrochimica Acta Microstructure characteristics and phase transformations of the Ni-P and Ni-P-Re electroless deposited coatings after heat treatment,” vol. 209, pp. 183–191, 2016.

Z. Sharifalhoseini and M. H. Entezari, “Applied Surface Science Enhancement of the corrosion protection of electroless Ni – P coating by deposition of sonosynthesized ZnO nanoparticles,” Appl. Surf. Sci., vol. 351, pp. 1060–1068, 2015.

V. K. Bulasara, H. Thakuria, R. Uppaluri, and M. K. Purkait, “Journal of Materials Processing Technology Combinatorial performance characteristics of agitated nickel hypophosphite electroless plating baths,” J. Mater. Process. Tech., vol. 211, no. 9, pp. 1488–1499, 2011.

R. Taheri, I. N. A. Oguocha, and S. Yannacopoulos, “The tribological characteristics of electroless NiP coatings,” vol. 249, no. January, pp. 389–396, 2001.

L. Pelapis, “Teknik pelapisan pada paduan al-2024 dengan metode electroless nickel,” no. 20, pp. 36–41, 2006.



  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.


Center for Material and Technical Product (B4T)

Jl. Sangkuriang No.14, Bandung, 40135, INDONESIA.

Email :

Telp : +62-22-2504088

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

View My Stats