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:
Jan. 10, 1989
Filed:
May. 11, 1987
Applicant:
Inventors:
Martin Von Allmen, Zollikofen, CH;
Andreas Blatter, Ostermundigen, CH;
Assignee:
Cendres & Metaux, S.A., Biel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 131 ; 148403 ;
Abstract
An alloy, e.g. a Cr-Ti alloy, is transformed to a metastable crystal modification, e.g., by heating in an electric arc and quenching in water. The metastable crystal modification is annealed at a temperature which is below the glass temperature, e.g. at 600.degree. C. during 48 hours, causing it to vitrify completely. The inventive method provided the production of large pieces of hard and non-porous amorphous alloy with thicknesses in the centimeter range.