Comparative Corrosion Assessment of Coated Alloys for Multi-Material Lightweight Vehicle Architectures McMaster University

Format:

Conference/Event

Author/Creator:

Kish, Kish, author.

Contributor:

Cano, Zach

Kobylecky, Alexandra

McDermid, Joseph

Skszek, Timothy

Conference Name:

SAE 2015 World Congress & Exhibition (2015-04-21 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractThe purpose of this study was to conduct a comparative corrosion assessment of alloys and coating schemes of interest for the fabrication of multi-material lightweight vehicle architectures. Alloys considered for this application included galvanized high strength low alloy steel, aluminum alloy AA6111 and magnesium alloy ZEK100. The coating scheme considered for corrosion protection included a layered paint top-coat scheme that was applied to a pre-treated surface. The pre-treatments included an alloy-specific commercial conversion coating (CC) and a plasma electrolytic deposition (PED) process that was applied only to the ZEK100 material. The corrosion assessment of the scribed coated alloy panels was conducted after 1000 h exposure in the ASTM B117 salt fog environment. Characterization of the mode and extent of corrosion damage observed and the role played by the exposed alloy microstructure utilized both light optical microscopy and electron microscopy. The results of this comparative study are discussed in the context of the suitability of the commercial coating schemes to provide sufficient corrosion protection of the lightweight alloys under study

Notes:

Vendor supplied data

Publisher Number:

2015-01-0738

Access Restriction:

Restricted for use by site license