Open AccessFabrication of Cr based electrodeposited composite film using nano ZrO2 particles on aluminum substrate
Author(s) -
Kota Sato,
Kenjiro Sugio,
Yongbum Choi,
Gen Sasaki,
Asep Ridwan Setiawan,
Agus Ramelan
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/547/1/012027
Subject(s) - materials science , coating , vickers hardness test , corrosion , microstructure , aluminium , electron microprobe , polarization (electrochemistry) , fabrication , composite material , metallurgy , plating (geology) , substrate (aquarium) , scanning electron microscope , medicine , chemistry , alternative medicine , oceanography , pathology , geophysics , geology
In this study, the coating method suitable for producing high-quality film on aluminum substrate was investigated by using different surface treatment to each specimen before electrodeposition. Microstructure of coating cross section was observed with Electron Prove Micro Analyzer (EPMA). Vickers hardness of coating surface was measured. The measurement of polarization behavior of aluminum in CrO 3 -H 2 SO 4 electrolyte with ZrO 2 addition was carried out to investigate corrosion resistance. The addition of ZrO 2 particles increased Vickers hardness of Cr coating. The existence of Zr in the coating was confirmed by point analysis from coating cross section. Polarization point was shifted higher by dispersing ZrO 2 particles into the plating bath, and this means that corrosion resistance was improved by the addition of ZrO 2 particles.