Wear-resistant sintered aluminum alloy and method for producing

Details Wear-resistant sintered aluminum alloy and method for producing Wear-resistant sintered aluminum alloy and method for producing

1995-02-09

1996-08-13

Jordan, Charles T.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428545, 428546, 428551, 428552, B22F 700

Patent

active

055454879

ABSTRACT:
The Al-Si sintered alloy having good mechanical strength and elongation and is especially excellent in wear resistance, and a method for producing the same. The sintered alloy consists of 2.4-23.5% Si, 2-5% Cu, 0.2-1.5% Mg, 0.01-1% of transition metals and the balance of aluminum and unavoidable impurities, and has a dapple grain structure of an Al-solid solution phase and an Al-Si alloy phase containing dispersed pro-eutectic Si crystals having a maximum diameter of 5-60 .mu.m either in the whole body or in the surface contact portion, and the area ratio of the Al-solid solution phase in the grain structure is in the range of 20-80%.

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