Compatibility of High Performance Aluminum-Silicon Alloys with Laser Surface Modification 2002-01-2014
The goal of the present work is to reduce the environmental impact of car gasoline engines by developing lightweight engine components. The use of light-weight metals such as aluminum results in substantial reductions in CO2 emissions. Traditionally aluminum alloys have been restricted to low temperature applications because of their poor mechanical properties at elevated temperature. However, novel fabrication methods such as spray forming and rapid solidification have overcome the temperature limitation. Coupled with a surface coating designed to withstand corrosion and wear at elevated temperatures, these high performance alloys may be considered to replace steel-based components in automotive engines. In this work, hypereutectic aluminum-silicon (Al-Si) alloys produced via different fabrication routes were tested for laser coating with a nickel-chromium alloy. Experimental results demonstrating the response of these alloys to laser coating are presented. It was found that the alloy fabrication route had a significant impact on laser compatibility due to the presence of absorbed gases. The results of this work will be translated to prototypes of engine components that will be tested in a test bench.
Citation: Pérez, M., Harlan, N., Zubiri, F., Zapirain, F. et al., "Compatibility of High Performance Aluminum-Silicon Alloys with Laser Surface Modification," SAE Technical Paper 2002-01-2014, 2002, https://doi.org/10.4271/2002-01-2014. Download Citation
Author(s):
M.G. Pérez, N.R. Harlan, F. Zubiri, F. Zapirain, K. Gebauer
Affiliated:
CETENASA (Centros Tecnológicos de Navarra, S.A.), TRW Automotive
Pages: 10
Event:
International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Aluminum alloys
Engine components
Alloys
Aluminum
Fabrication
Corrosion
Gases
Coatings, colorants, and finishes
Forming
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »