Magnesium alloy member and production method therefor
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Mar 29, 2013
filing date -
Apr 18, 2012
priority date (Note) -
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Abstract
A high-strength magnesium alloy member is suitable for products in which at least one of bending stress and twisting stress primarily acts. The member has required elongation and 0.2% proof stress, whereby strength and formability are superior, and has higher strength and large compressive residual stress in the vicinity of the surface of a wire rod. In the magnesium alloy member formed as a wire rod in which at least one of bending stress and twisting stress primarily acts, the wire rod includes a surface portion having the highest hardness of 170 HV or more in the vicinity of the surface and an inner portion having a 0.2% proof stress of 550 MPa or more and an elongation of 5% or more, and the wire rod has the highest compressive residue stress in the vicinity of the surface of 50 MPa or more.
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International Classification(s)
- B22F:WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES F....
- C22F:CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS MET....
- B22D:CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY ....
- B21C:MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PR....
- C21D:MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS....
- C22C:ALLOYS
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