| Patent application number | Description | Published |
|---|
| 20090028743 | FORMING MAGNESIUM ALLOYS WITH IMPROVED DUCTILITY - A magnesium alloy comprising up to about one weight percent of cerium may be hot worked to produce an intermediate or final alloy workpiece that exhibits enhanced ductility at room temperature. The addition of a small amount of cerium may affect the magnesium alloy by reducing yield strength, refining grain size, and improving the work hardening behavior. Recrystallization during hot deformation of the rare earth containing magnesium material alters the texture of the alloy and orients the grains in a manner that favors basal slip activity. The alloy thus deforms at room temperature by a combination of twinning and slip mechanisms. | 01-29-2009 |
| 20090116994 | High ductility/strength magnesium alloys - A magnesium alloy comprising up to about six weight percent zinc and up to about one weight percent cerium may be hot worked to produce an intermediate or final alloy workpiece that exhibits enhanced ductility and strength at room temperature. The addition of zinc and a small amount of cerium may affect the magnesium alloy by increasing strength and ductility, and improving the work hardening behavior. | 05-07-2009 |
| 20100083481 | Method for attaching magnesium panels using self-piercing rivet - A method for attaching an aluminum panel to a magnesium panel via a self-piercing rivet. The method includes positioning the aluminum panel and the magnesium panel together with the magnesium panel supported on an anvil having a cavity therein. The magnesium panel is spot heated at the locale of the anvil, and then the self-piercing steel rivet is punched through the steel panel and only partway into the magnesium panel, to displace the magnesium panel into the cavity. The heating of the magnesium improves the ductility so that the self-piercing rivet is accepted without undue strain on the magnesium material. The interface between the steel rivet and the magnesium panel is concealed between the aluminum panel and the magnesium panel to thereby protect the interface between the steel material of the rivet and the magnesium panel from exposure to the environment. | 04-08-2010 |
| 20100092790 | MOLDED OR EXTRUDED COMBINATIONS OF LIGHT METAL ALLOYS AND HIGH-TEMPERATURE POLYMERS - Hybrid articles comprising a molded mixture of a light metal alloy and a polymer are formed by processing (including co-molding and co-extruding) the metal in a semi-solid state at a high shear rate and the polymer in a melt processable state. For example, magnesium alloy particles in a thixotropic condition are mixed with particles or globules of the polymer and molded into a hybrid metal-containing and polymer-containing body. The proportions of magnesium and polymer may be varied substantially depending on the desired properties of the hybrid article. In another embodiment the light metal and polymer may be co-extruded as two or more distinct layers into a solid or hollow hybrid body. | 04-15-2010 |
| 20100117443 | LIGHTWEIGHT ALUMINUM WHEEL WITH MAGNESIUM RIM - One embodiment includes a wheel including a first portion including magnesium, the first portion including at least a rim; a second portion including aluminum; and an interface where the first portion and the second portion contact each other. | 05-13-2010 |
| 20100143746 | METHODS OF REDUCING CORROSION BETWEEN MAGNESIUM AND ANOTHER METAL - Methods of reducing corrosion between magnesium and another metal are disclosed herein. In one method, a corrosion protection material is cold sprayed at an interface formed between the magnesium and the other metal, the corrosion protection material including magnesium. In another method, a cladding layer is applied to heat affected areas of the magnesium and/or the other metal, at a welded joint, or combinations thereof. | 06-10-2010 |
| 20110030855 | CORROSION RESISTANCE OF THE CAST Mg ALLOYS BY NOVEL MICROSTRUCTURAL PHASE MODIFICATIONS - A method of improving the corrosion resistance of magnesium alloy castings containing more than about 2 per cent by weight of aluminum is described. The method comprises: first selecting a casting process suitable for developing at least on the surface of the casting a microstructure comprising aluminum-depleted magnesium grains surrounded by an aluminum-rich layer and preferably incorporating at least some of an intermetallic compound based on the composition Mg | 02-10-2011 |
| 20110286880 | HIGH STRENGTH Mg-Al-Sn-Ce AND HIGH STRENGTH/DUCTILITY Mg-Al-Sn-Y CAST ALLOYS - One exemplary embodiment includes a cast alloy including Al present in an amount of about 6.5 wt % to about 9.0 wt %; Sn present in an amount of about 1.0 wt % to about 3.0 wt %; Ce present in an amount of about 0 wt % to about 1.0 wt %; and, Mg comprising a balance of the alloy minus an amount of minor and trace elements wherein Mg is present at an amount of greater than about 85 wt %. | 11-24-2011 |
