A1-base alloy having excellent high-temperature strength
AssigneeKubota Corporation
InventorsShoichi Yoshino, Toshio Tani, Kazuo Osada
Life of this patent
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Abstract
An Al-base alloy prepared by hot-working a mixture of an Al alloy powder and dan Ni powder to join the powders and having a structure wherein Ni--Al intermetallic compounds are dispersed. The powder mixture can be hot-worked in the solid-phase temperature range, liquid phase temperature range or solid-liquid phase mixture temperature range of the Al alloy. A dispersion strengthening powder can be further admixed with the mixture of Al alloy powder and Ni powder.
Claims18
An Al-base alloy prepared by hot-working a mixture of a powder of Al alloy containing therein at least about 70 weight % of Al and a powder of Ni, wherein the mixture comprises 95-50 weight % of the Al powder and 5-50 weight % of the Ni powder, the Al-base alloy having a compressive strength of at least 200 MPa at 400.degree. C.
An alloy prepared by hot-working a mixture of powder of Al alloy containing therein at least about 70 weight % of Al, a powder of Ni and a powder of a dispersion strengthening alloy, wherein the mixture comprises 92-25 weight % of the Al alloy powder, 5-50 weight % of the Ni powder and 3 to 25 weight % of the dispersion strengthening alloy powder, the alloy having a compressive strength of at least 200 MPA at 400.degree. C.
Dependencies are inferred from the claim text.