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:
Sep. 25, 2018
Filed:
Jan. 09, 2018
Applicant:
Magnesium Elektron Limited, Manchester, GB;
Inventors:
Assignee:
Magnesium Elektron Limited, Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 23/06 (2006.01); B22D 21/00 (2006.01); C22C 1/03 (2006.01); C22C 30/00 (2006.01); C22F 1/06 (2006.01); E21B 33/12 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
C22C 23/06 (2013.01); B22D 21/007 (2013.01); C22C 1/03 (2013.01); C22C 30/00 (2013.01); C22F 1/06 (2013.01); E21B 33/12 (2013.01); E21B 34/00 (2013.01);
Abstract
A magnesium alloy is suitable for use as a corrodible downhole article, wherein the alloy includes: (a) 11-15 wt % Y, (b) 0.5-5 wt % in total of rare earth metals other than Y, (c) 0-1 wt % Zr, (d) 0.1-5 wt % Ni, and (e) at least 70 wt % Mg. It has been surprisingly found by the inventors that by increasing the Y content of the alloy to the range specified above, increased age hardening response and hence increased 0.2% proof stress can be achieved.