Alusil
Alusil as a hypereutectic aluminium-silicon alloy (Al17Si4CuMg or A390) contains approximately 78% aluminium and 17% silicon. This alloy was created in 1927 by Schweizer & Fehrenbach of Baden-Baden Germany and further developed by Kolbenschmidt.
The Alusil aluminium alloy is commonly used to make linerless aluminium alloy engine blocks. 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
Podcasts:
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by Alliswell
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by Alliswell
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by Alliswell
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by Alliswell
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by Alliswell
Trophy Wife
by: AlliswellYou were broken like a vase that fell,
There you lay scattered and broken,
But still too proud for your shelf.
He did his "best" to mend your shattered fault lines of cracked porcelain but it was a waste of his time..
Most of your life, you were nothing but his trophy wife, and you just can't take it anymore.
Not too long after you exchanged your vows,
He snuck off late at night, sleeping around, but like a good wife should, you just looked the other way.
"baby, I swear it's not what you think. You just need to calm down, why don't you make another drink?"