Highly ductile sintered aluminum alloy, method for production th

Details Highly ductile sintered aluminum alloy, method for production th Highly ductile sintered aluminum alloy, method for production th

1992-04-08

1995-02-07

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75249, 419 23, 419 28, 419 29, 419 38, 419 44, 419 48, 419 56, 419 60, C22C 2900

Patent

active

053872720

ABSTRACT:
The present invention provides an Al-Si based sintered alloy of high strength and high ductility, a method for production thereof and use thereof. The alloy comprises 1-45% of Si, 0.1-20% of an element of Group IIIa, 0.01-5% of at least one element of Groups IVa and Va, the balance of substantially Al. This alloy can further contain at least one of 0.01-5% of Cu, 0.01-5% of Mg, 2.0% or less of Fe, 1.5% or less of Mn and 1.5% or less of Co and the oxygen content is reduced to 0.15% or less by sintering under vacuum. The present invention is applied to automobile parts such as a piston and scroll compressors. The alloy has a tensile strength of about 40 kg/mm.sup.2 or higher and an elongation of 1.5% or more at 150.degree. C.

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Patent Abstracts of Japan, vol. 8., No. 170, 7th Aug. 1984.

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