The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1995
Filed:
Sep. 03, 1993
Kazuhiko Kita, Uozu, JP;
YKK Corporation, Tokyo, JP;
Abstract
An aluminum-based alloy which consists Al and 0.1 to 25 atomic % of at least two transition metal elements and has a structure in which at least quasicrystals are homogeneously dispersed in a matrix composed of Al or a supersaturated Al solid solution. The quasicrystals are preferably composed of an I-phase alone or a mixed phase of an I-phase and a D-phase and preferably has a volume nfraction of 20% or less. Specifically, the aluminum-based alloy has the composition represented by the general formula Al.sub.bal Ni.sub.a X.sub.b or Al.sub.bal Ni.sub.a X.sub.b M.sub.c wherein X is one or two elements selected between Fe and Co; M is at least one element selected from among Cr, Mn, Nb, Mo, Ta and W; 5.ltoreq.a.ltoreq.10; 0.5.ltoreq.b.ltoreq.10; and 0.1.ltoreq.c.ltoreq.5. The alloy is excellent in hardness and strength both at room temperature and high temperature and in heat resistance and has a high specific strength. It can retain the excellent characteristics even when affected by the heat of working.