| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.43 ( October 2000 ) Automative Materials and Instrumentation and Process Control ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Corrosion Behavior of Vehicles Operated in
North America for 5 Years Morishige Uchida, Kazuo Mochizuki |
| Synopsis: Some passenger vehicles, which were manufactured in 1989 and 1991 and used around Detroit area for 5 years, were submitted for a corrosion investigation. Panels forming the body shell have been classified into five categories with respect to the corrosion environment and were evaluated their cosmetic corrosion and perforation corrosion. It is confirmed that exterior panels made of two-side zinc coated steel sheet have excellent performance in cosmetic corrosion. It is shown that the corrosion depth at lapped parts under low humid condition decreases with increase in zinc coating weight. With precoated panels of zinc coating of more than 45 g/m2, the degree of corrosion was slight. It was found that the usage of zinc coating steel sheet improves the anti-corrosion performance of vehicles. |
| TextiPDF: 7P/346kbj |