Alusil
Alusil as a hypereutectic aluminium-silicon alloy (EN AC-AlSi17Cu4Mg / EN AC-48100 or A390) contains approximately 78% aluminium and 17% silicon.[1][2] This alloy was theoretically conceived in 1927 by Schweizer & Fehrenbach[3], of the Badener Metall-waren-Fabrik, 2a Hermannstraße, Baden-Baden;[4] but practically created only by Lancia[5] in the same year, for its car engines. It was further developed by Kolbenschmidt.[2]
The Alusil aluminium alloy is commonly used to make linerless aluminium alloy engine blocks.[6] Alusil, when etched, will expose a very hard silicon precipitate. The silicon surface is non-porous enough to hold oil, and is an excellent bearing surface. BMW switched from Nikasil-coated cylinder walls to Alusil in 1996 to eliminate the corrosion problems caused through the use of petrol/gasoline containing sulfur.
Engines using Alusil include:
- Audi 2.4 V6[1][7]
- Audi 4.2 MPI V8
- Audi 3.2 FSI V6[7]
- Audi 4.2 FSI V8[1][3]
- Audi 5.2 FSI V10
- Audi/Volkswagen 6.0 W12
- BMW M52 I6[citation needed]
- BMW M54 I6
- BMW N52 I6
- BMW M62 V8
- BMW N62 V8
- BMW N63 V8
- BMW M70/M73 V12[8]
- BMW S65 & S85 M Engines
- Mercedes-Benz M112 engine V6
- Mercedes-Benz M113 engine V8
- Mercedes 560 SEL M117 V8
- Mercedes M119 V8
- Porsche 928 V8
- Porsche 924S I4
- Porsche 944 I4
- Porsche 968 I4
- Porsche Cayenne V8[3]
See also
References
- ^ a b c "ALUMINUM GLASS DOOR" (PDF). KS Aluminium-Technologie AG. KSPG-AG.com. Retrieved 13 January 2010.[permanent dead link ]
- ^ a b "What is Alusil coating?". finishing dot com. finishing.com. Retrieved 13 January 2010.
- ^ a b c "Rheinmetall's tradition of automotive excellence". Rheinmetall Defence. Rheinmetall-Detec.de. January 2006. Archived from the original on 25 September 2006. Retrieved 23 May 2020.
- ^ Addreßbuch Baden-Baden 1926 (PDF). Baden-Baden: Ernst Koelblin. pp. 49, 80, 185, 375.
- ^ Manicardi N. (2014). Pionieri dell'automobile. Lancia, Bazzi, Ferrari. Modena (IT): Il Fiorino. ISBN 88-7549-464-9.
- ^ "High-performance engine blocks for tomorrow's challenges". Kolbenschmidt Pierburg AG. KSPG-AG.com. 12 September 2005. Archived from the original on 2012-10-07. Retrieved 13 January 2010.
- ^ a b "Aluminium glass door and window". Rheinmetall AG. Rheinmetall.de. August 2004. Retrieved 13 January 2010.[permanent dead link ]
- ^ "High-tech products for the new and advanced BMW V12". Kolbenschmidt Pierburg AG. KSPG-AG.com. 10 January 2003. Archived from the original on 2012-10-07. Retrieved 13 January 2010.
External links
- Kolbenschmidt Pierburg - official website of Alusil trademark holder