Corrosion resistant magnesium alloy

Abstract

According to aspects of the present disclosure, a method includes obtaining a first amount of magnesium, a second amount of manganese, and a third amount of a cathodic poison and combining the magnesium, the manganese, and the cathodic poison to thereby form a kinetically hindered magnesium alloy includes less than 1 part by weight of manganese and less than about 5 parts by weight of cathodic poison based on 100 parts of the kinetically hindered magnesium alloy. The cathodic poison is configured to inhibit a cathodic reaction when combined with the magnesium.

1 . A method comprising:
 obtaining a first amount of magnesium, a second amount of manganese, and a third amount of a cathodic poison, the cathodic poison configured to inhibit a cathodic reaction when combined with the magnesium; and   combining the magnesium, the manganese, and the cathodic poison to thereby form a kinetically hindered magnesium alloy including less than 1 part by weight of manganese and less than about 5 parts by weight of cathodic poison based on 100 parts of the kinetically hindered magnesium alloy.   
     
     
         2 . The method of  claim 1 , wherein the cathodic poison includes at least one element selected from the group consisting of periodic table of the elements Group 14 alloying elements, periodic table of the elements Group 15 alloying elements, and periodic table of the elements Group 16 alloying elements. 
     
     
         3 . The method of  claim 1 , wherein the cathodic poison consists of silicon. 
     
     
         4 . The method of  claim 1 , wherein the cathodic poison consists of a nonmetallic alloying element. 
     
     
         5 . The method of  claim 1 , wherein the cathodic poison is a nonmetallic alloying element selected from the group consisting of phosphorous, sulfur, and selenium. 
     
     
         6 . The method of  claim 1 , wherein the cathodic poison consists of at least one periodic table of the elements Group 16 alloying element. 
     
     
         7 . The method of  claim 1 , wherein the first amount of magnesium includes a hydrogen promotor, and wherein the hydrogen promotor is not removed prior to or during forming the kinetically hindered magnesium alloy. 
     
     
         8 . The method of  claim 1 , further comprising exposing the kinetically hindered magnesium alloy directly to an aqueous environment. 
     
     
         9 . The method of  claim 1 , further comprising forming an automobile component from the kinetically hindered magnesium alloy. 
     
     
         10 . A method comprising:
 obtaining a first amount of magnesium, a second amount of manganese, and a third amount of a cathodic poison, the cathodic poison configured to inhibit a cathodic reaction when combined with the magnesium; and   combining the magnesium, the manganese, and the cathodic poison to thereby form a kinetically hindered magnesium alloy including less than about 6 parts by weight of a combination of the manganese and the cathodic poison based on 100 parts by weight of the kinetically hindered magnesium alloy.   
     
     
         11 . The method of  claim 10 , wherein the cathodic poison consists of silicon. 
     
     
         12 . The method of  claim 10 , wherein the cathodic poison consists of a nonmetallic alloying element. 
     
     
         13 . The method of  claim 10 , wherein the cathodic poison is a nonmetallic alloying element selected from the group consisting of phosphorous, sulfur, and selenium. 
     
     
         14 . The method of  claim 10 , wherein the cathodic poison consists of a periodic table of the elements Group 16 alloying element. 
     
     
         15 . A method comprising:
 obtaining a first amount of magnesium, a second amount of manganese, and a third amount of a cathodic poison, the cathodic poison being a nonmetallic alloying element configured to inhibit a cathodic reaction when combined with the magnesium; and   combining the magnesium, the manganese, and the cathodic poison to thereby form a kinetically hindered magnesium alloy.   
     
     
         16 . The method of  claim 15 , wherein the kinetically hindered magnesium alloy includes less than about 6 parts by weight of a combination of the manganese and the cathodic poison. 
     
     
         17 . The method of  claim 15 , wherein the kinetically hindered magnesium alloy includes less than 1 part by weight of the manganese and less than about 5 parts by weight of the cathodic poison. 
     
     
         18 . The method of  claim 15 , wherein the nonmetallic alloying element is selected from the group consisting of phosphorous, sulfur, and selenium. 
     
     
         19 . The method of  claim 15 , further comprising exposing the kinetically hindered magnesium alloy directly to an aqueous environment. 
     
     
         20 . The method of  claim 15 , further comprising forming an automobile component from the kinetically hindered magnesium alloy.