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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: *Audi 2.4 V6〔 *Audi 3.2 FSI V6〔 *Audi 4.2 FSI V8〔〔 *Audi 5.2 FSI V10 *Audi/Volkswagen 6.0 W12 *BMW M52 I6 *BMW N52 I6 *BMW M60 V8 *BMW M62 V8 *BMW N62 V8 *BMW N63 V8 *BMW N63TU V8 *BMW M70/M73 V12 *Mercedes 560 SEL M117 V8 *Mercedes M119 *Porsche 928 V8 *Porsche 924S I4 *Porsche 944 I4 *Porsche 968 I4 *Porsche Cayenne V8〔 ==See also== *Hypereutectic piston 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Alusil」の詳細全文を読む スポンサード リンク
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