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:
Jul. 04, 2023
Filed:
Jul. 10, 2018
National Institute for Materials Science, Ibaraki, JP;
Hidetoshi Somekawa, Ibaraki, JP;
Yoshiaki Osawa, Ibaraki, JP;
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Tsukuba, JP;
Abstract
Adding multiple solute elements could create fracture origin through formation of intermetallic compound due to bonding of added elements. While maintaining microstructure for activating non-basal dislocation movement, additive elements not to create fracture origin, but to promote grain boundary sliding are preferably found from among inexpensive and versatile elements. Provided is Mg-based wrought alloy material including two or more among group consisting of Mn, Zr, Bi, and Sn; and Mg and unavoidable constituents, having excellent room-temperature ductility and characterized by having finer crystal grain size in Mg parent phase during room-temperature deformation and in that mean grain size in matrix thereof is 20 μm or smaller; rate of (σ−σ)/σ(maximum load stress (σ), breaking stress (σ)) in stress-strain curve obtained by tension-compression test of the wrought material is 0.2 or higher; and resistance against breakage shows 200 kJ or higher.