Wear-resistant alloys particularly suited to aluminum-engine head-valve seats
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United States of America Patent
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Oct 7, 2008
Grant Date -
Feb 10, 2005
app pub date -
Feb 23, 2004
filing date -
Feb 21, 2003
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Abstract
A thermally conductive, wear-resistant alloy is particularly suited to cladding aluminum engine head valve seats. In the preferred embodiments, the alloys are metallurgically compatible with the cast Al--Si alloy used for the engine head. Three alternative embodiments are disclosed, namely, copper-based alloys; aluminum silicon-based alloys; and two-layer systems.
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