ANALYSIS OF FAILURE CONTROL CORROSION BY USING COATINGS USING ZINC (Zn) ZINC PHOSPHATE (Zn3(PO4)2), ZINC SILICATE (ZnSiO4), AND NICKEL METAL IN AUTOMOTIVE INDUSTRY
The purpose of this research were knowing various coating materials to prevent and minimize the occurrence of automatic corrosion, studying the characteristics of coating material that is zinc, zinc phosphate, zinc silicate, and nickel metal in coating steel in automotive and studying coating mat...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/45835 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The purpose of this research were knowing various coating materials to prevent and
minimize the occurrence of automatic corrosion, studying the characteristics of
coating material that is zinc, zinc phosphate, zinc silicate, and nickel metal in
coating steel in automotive and studying coating materials that considered and the
most appropriate in Indonesia today as a coating material in the automotive.
The method in this study was explorative analysis of various previous studies.
Explorative analysis used to explore each coating material (coating) in order to
obtain information about the material that suitable for the weather in Indonesia.
Data sources from research journals, books and others to support research. Data
collection technique used in this paper was document analysis techniques. The
author collected data from various book sources, journals, and the internet to
support this thesis.
Based on the results of studies of zinc, zinc silicate, zinc phosphate and nickel could
be used as a coating or coating material on the vehicle frame in certain parts. Zinc
began to form corrosion at 96 hours (4 days) after the salt spray test, the thickness
of the zinc layer was 82.3-100 ?m and based on SEM test the surface of the zinc
was intact with several coating defects and Zn was evenly distributed. Zinc
phosphate began to appear corrosion after 4 days of immersion using NaCl 3.5%
and corrosion increased after 8 days, the thickness of the zinc phosphate layer were
50 ?m and 77 ?m and there were still pore points on the coating material. Zinc
silicate was corrosion resistant for up to 5 years with a layer thickness of 0.3-10
?m. Nickel could corrosion resistant for decades with a thickness of 0.2-0.7 ?m and
13 ?m thickness and the results of SEM metal materials evenly and uniformly
shaped. |
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