Patent ID: 8181690
Filing Date: 2012-05-22
Classification: B22D,B32B,C22C,Y10T

Abstract:
1. A method of forming a coated article, the method comprising: heating a magnesium alloy component formed from magnesium alloyed with an element; positioning the component in a mold such that a gap exists between outer surfaces of the magnesium alloy component and inner surfaces of the mold; heating a magnesium-containing alloy material above its melting temperature, the magnesium-containing alloy material melting temperature being lower than a melting temperature of the magnesium alloy component, and wherein the magnesium-containing alloy material is formed from magnesium alloyed with i) the element in the magnesium alloy component, wherein the element is present at a higher concentration in the magnesium-containing alloy material, ii) at least one element that is different than the element in the magnesium alloy component, or iii) the element in the magnesium alloy component and at least one other element; introducing the magnesium-containing alloy material into the gap, thereby covering at least the outer surfaces of the magnesium alloy component; and cooling the magnesium-containing alloy material to form a substantially evenly distributed solidified coating on the outer surfaces of the magnesium alloy component, the coating having a higher wear resistance, corrosion resistance, or combinations thereof than that of the magnesium alloy component.