STUDI INTER-DIFUSI ALUMINIUM PADA HASTELLOY DAN LAPISAN ELECTROPLATING NIKEL

OKTARINA, DWI and Thosin, Kemas Ahmad Zaini and Ramlan, Ramlan (2015) STUDI INTER-DIFUSI ALUMINIUM PADA HASTELLOY DAN LAPISAN ELECTROPLATING NIKEL. Undergraduate thesis, Sriwijaya University.

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Abstract

study has been carried out on Al-Ni coating on a substrate with a plate-shaped hastelloy pack cementation method and electroplating Ni-Strike and electroplating Ni-watts.. In the method pack cementation metals Al deposited at a temperature of 800°C for 7 hours in an inert gas (argon) in a mixture powder composed of 15% Al which serves as a source of coating, 80% Al2O3 serves as an activator and 5% NH4Cl serves as an inert filler Electroplating method and Ni Nistrike- watts performed with a current of 500 mA / cm2 at a temperature of 25 ℃ in the hood for 30 seconds, to form a Ni layer of adhesive on the substrate . For electroplating Ni - watts using a current of 20 mA / cm2 a temperature of 50 ° C in a water bath for 60 minutes. During the electroplating process, the electrolyte solution kept stirred using magnetic stirerr maintain solution homogeneity. Source electrolyte solution obtained from 165 g NiSO4, 22,5 NiCl2, and 20 g H3BO3 Heat Treatment carried out at a temperature of 900ºC for 10 hours in an inert gas (Argon) so that diffusion between Al in hastelloy and layer electroplating nickel lining, so hastelloy and a layer of Al-Ni can bind to form a compound that is strong and get the value of hardness (Vickers Hardness Test) and a higher power. Test analysis by SEM (Scanning Electron Microscopy) and EDS (Energy Dispersive Spectroscopy) was performed to analyze the phenomenon that is formed between the layers and find out the various elements contained in each layer

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Pack cementation, electroplating, heat treatment
Subjects: Q Science > QC Physics > QC1-999 Physics
Q Science > QC Physics > QC770-798 Nuclear and particle physics. Atomic energy. Radioactivity
Divisions: 08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User: Mrs Dies Meirita Sari
Date Deposited: 20 Nov 2019 07:46
Last Modified: 20 Nov 2019 07:46
URI: http://repository.unsri.ac.id/id/eprint/17366

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