Al-Si Al-Si casting alloy and method for fabricating the same

摘要

The present invention Al-Si containing the β phase (Al ₅ FeSi) in a production method of Al-Si-based alloy cast material capable of reducing the manufacturing cost, the content of Fe range 0.2wt% to 1.0wt% base Providing a system casting alloy; The step of refining the said β phase (Al ₅ FeSi) by processing the Al-Si-based alloy cast material mechanically; And aging the mechanically processed Al-Si based casting alloy at a temperature ranging from 150 ° C to 200 ° C.