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M52 uses alusil, m54 and m52tu use cast iron liners.
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Paal.foyn (talk | contribs)
corrected and amended material designation according to europena norm.
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'''Alusil''' as a [[eutectic system|hypereutectic]] [[aluminium]]-[[silicon]] [[alloy]] (Al17Si4CuMg or A390) contains approximately 78% aluminium and 17% silicon.<ref name=KSPG-AG>{{cite web|title=ALUSIL - Cylinder Blocks for the new Audi V6 and V8 SI engines|url=http://www.kspg-ag.com/pdfdoc/kspg_produktbroschueren/a_audi_zkg_e.pdf|format=PDF|work=KS Aluminium-Technologie AG|publisher=KSPG-AG.com|date= |accessdate=13 January 2010}}</ref><ref name=finishing.com>{{cite web|title=What is Alusil coating?|url=http://www.finishing.com/3600-3799/3605.shtml|work=finishing dot com|publisher=finishing.com|accessdate=13 January 2010}}</ref> This alloy was created in 1927 by Schweizer & Fehrenbach<ref name=Rheinmetall>{{cite web|title=Rheinmetall's tradition of automotive excellence|url=http://www.rheinmetall-detec.de/index.php?lang=3&fid=3397|work=Rheinmetall Defence|publisher=Rheinmetall-Detec.de|date=January 2006|accessdate=13 January 2010}}</ref> of Baden-Baden Germany and further developed by [[Kolbenschmidt]].<ref name=finishing.com/>
'''Alusil''' as a [[eutectic system|hypereutectic]] [[aluminium]]-[[silicon]] [[alloy]] (EN AC-AlSi17Cu4Mg / EN AC-48100 or A390) contains approximately 78% aluminium and 17% silicon.<ref name=KSPG-AG>{{cite web|title=ALUSIL - Cylinder Blocks for the new Audi V6 and V8 SI engines|url=http://www.kspg-ag.com/pdfdoc/kspg_produktbroschueren/a_audi_zkg_e.pdf|format=PDF|work=KS Aluminium-Technologie AG|publisher=KSPG-AG.com|date= |accessdate=13 January 2010}}</ref><ref name=finishing.com>{{cite web|title=What is Alusil coating?|url=http://www.finishing.com/3600-3799/3605.shtml|work=finishing dot com|publisher=finishing.com|accessdate=13 January 2010}}</ref> This alloy was created in 1927 by Schweizer & Fehrenbach<ref name=Rheinmetall>{{cite web|title=Rheinmetall's tradition of automotive excellence|url=http://www.rheinmetall-detec.de/index.php?lang=3&fid=3397|work=Rheinmetall Defence|publisher=Rheinmetall-Detec.de|date=January 2006|accessdate=13 January 2010}}</ref> of Baden-Baden Germany and further developed by [[Kolbenschmidt]].<ref name=finishing.com/>


The Alusil aluminium alloy is commonly used to make [[cylinder liner|liner]]less aluminium alloy [[engine block]]s.<ref>{{cite web|title=High-performance engine blocks for tomorrow’s challenges|url=http://www.kspg-ag.de/index.php?lang=2&fid=444#11|work=Kolbenschmidt Pierburg AG|publisher=KSPG-AG.com|date=12 September 2005|accessdate=13 January 2010}}</ref> Alusil, when etched, will expose a very hard silicon precipitate. The silicon surface is porous enough to hold [[motor oil|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.
The Alusil aluminium alloy is commonly used to make [[cylinder liner|liner]]less aluminium alloy [[engine block]]s.<ref>{{cite web|title=High-performance engine blocks for tomorrow’s challenges|url=http://www.kspg-ag.de/index.php?lang=2&fid=444#11|work=Kolbenschmidt Pierburg AG|publisher=KSPG-AG.com|date=12 September 2005|accessdate=13 January 2010}}</ref> Alusil, when etched, will expose a very hard silicon precipitate. The silicon surface is porous enough to hold [[motor oil|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.

Revision as of 08:36, 8 June 2017

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 created in 1927 by Schweizer & Fehrenbach[3] of Baden-Baden Germany and further developed by Kolbenschmidt.[2]

The Alusil aluminium alloy is commonly used to make linerless aluminium alloy engine blocks.[4] Alusil, when etched, will expose a very hard silicon precipitate. The silicon surface is 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:

See also

References

  1. ^ a b c "ALUSIL - Cylinder Blocks for the new Audi V6 and V8 SI engines" (PDF). KS Aluminium-Technologie AG. KSPG-AG.com. Retrieved 13 January 2010.
  2. ^ a b "What is Alusil coating?". finishing dot com. finishing.com. Retrieved 13 January 2010.
  3. ^ a b c "Rheinmetall's tradition of automotive excellence". Rheinmetall Defence. Rheinmetall-Detec.de. January 2006. Retrieved 13 January 2010.
  4. ^ "High-performance engine blocks for tomorrow's challenges". Kolbenschmidt Pierburg AG. KSPG-AG.com. 12 September 2005. Retrieved 13 January 2010.
  5. ^ a b "KS Aluminium-Technologie: engine blocks for the new Audi A6". Rheinmetall AG. Rheinmetall.de. August 2004. Retrieved 13 January 2010.
  6. ^ "High-tech products for the new and advanced BMW V12". Kolbenschmidt Pierburg AG. KSPG-AG.com. 10 January 2003. Retrieved 13 January 2010.