High strength low cost titanium and method for making same

Abstract

A titanium alloy and method of making the same are provided. The alloy comprises one or more elements selected from the group consisting of chromium, iron, and manganese. In an as-cast condition, the alloy has a yield strength of at least about 135,000 psi, a tensile strength of at least about 155,000 psi and a percent elongation of at least about 5.0 percent.

1 . A titanium alloy, comprising: 
 aluminum, in a range of about 3.5 to about 6.25 percent by weight of the alloy;    vanadium, in a range of about 3.0 to about 4.5 percent by weight of the alloy;    one or more elements selected from the group consisting of chromium, iron, and manganese, wherein said one or more elements are present in a range of about 1.0 to about 5.0 percent by weight of the alloy;    titanium being present in a remaining amount;    wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.    
   
   
       2 . The alloy of  claim 1 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       3 . The alloy of  claim 1 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5 percent.  
   
   
       4 . The alloy of  claim 1 , wherein the amount of chromium is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       5 . The alloy of  claim 1 , wherein the amount of chromium is in a range of about 1.2 to about 2.0 percent by weight of the alloy.  
   
   
       6 . The alloy of  claim 1 , wherein the amount of manganese is in a range of up to about 2.0 percent by weight of the alloy.  
   
   
       7 . The titanium alloy of  claim 1 , wherein the amount of manganese is in a range of about 0.75 to about 1.25 percent by weight of the alloy.  
   
   
       8 . The titanium alloy of  claim 1 , wherein the amount of iron is in a range of up to about 1.0 percent by weight of the alloy.  
   
   
       9 . The titanium alloy of  claim 1 , wherein the amount of aluminum is in a range of about 5.0 to about 6.0 percent by weight of the alloy.  
   
   
       10 . The titanium alloy of  claim 1 , wherein the amount of vanadium is in a range of about 3.3 to about 4.5 percent by weight of the alloy.  
   
   
       11 . The titanium alloy of  claim 1 , wherein the combined amount of chromium, manganese, and iron is in a range of about 2.0 percent to about 3.5 percent by weight of the alloy.  
   
   
       12 . The titanium alloy of  claim 1 , further comprising oxygen in a range of up to about 0.3 percent by weight of the alloy.  
   
   
       13 . A titanium alloy, comprising: 
 titanium; and    one or more elements selected from the group consisting of chromium, manganese, and iron, wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.    
   
   
       14 . The titanium alloy of  claim 13 , further comprising aluminum.  
   
   
       15 . The titanium alloy of  claim 14 , wherein the amount of aluminum is in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       16 . The titanium alloy of  claim 13 , further comprising vanadium.  
   
   
       17 . The titanium alloy of  claim 16 , wherein the amount of vanadium is in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       18 . The titanium alloy of  claim 13 , wherein the amount of chromium is in a range of up to about 3.8 percent by weight of the alloy.  
   
   
       19 . The titanium alloy of  claim 13 , further comprising oxygen.  
   
   
       20 . The titanium alloy of  claim 19 , wherein the amount of oxygen is in a range of up to about 0.3 percent by weight of the alloy.  
   
   
       21 . The titanium alloy of  claim 13 , wherein the amount of manganese is in a range of up to about 2.0 percent by weight of the alloy.  
   
   
       22 . The titanium alloy of  claim 13 , wherein the amount of manganese is in a range of about 0.75 to about 1.25 percent by weight of the alloy.  
   
   
       23 . The titanium alloy of  claim 13 , wherein the amount of chromium is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       24 . The titanium alloy of  claim 13 , wherein the amount of iron is in a range of up to about 1.0 percent by weight of the alloy.  
   
   
       25 . The titanium alloy of  claim 13 , wherein the combined amount of chromium, manganese, and iron is in a range of about 1.0 to about 5.0 percent by weight of the alloy.  
   
   
       26 . The titanium alloy of  claim 13 , wherein the combined amount of chromium, manganese, and iron is in a range of about 2.0 to about 3.5 percent by weight of the alloy.  
   
   
       27 . The titanium alloy of  claim 13 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       28 . The titanium alloy of  claim 13 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent.  
   
   
       29 . A method of making a titanium alloy, comprising: 
 combining a titanium material with one or more elements selected from the group consisting of chromium, manganese, and iron, wherein in an as-cast condition, the titanium alloy has a yield strength of at least about 135,000 psi.    
   
   
       30 . The method of  claim 29 , wherein the combined amount of chromium, manganese, and iron in the alloy is in a range of about 1.0 to about 5.0 percent by weight of the alloy.  
   
   
       31 . The method of  claim 29 , wherein the combined amount of chromium, manganese, and iron in the alloy is in a range of about 2.0 to about 3.5 percent by weight of the alloy.  
   
   
       32 . The method of  claim 29 , wherein the alloy comprises oxygen in a range of up to about 0.3 percent by weight of the alloy.  
   
   
       33 . The method of  claim 32 , wherein the amount of oxygen in the alloy is greater than about 0.2 percent by weight of the alloy.  
   
   
       34 . The method of  claim 29 , wherein the amount of manganese in the alloy is in a range of up to about 2 percent by weight of the alloy.  
   
   
       35 . The method of  claim 29 , wherein the amount of manganese in the alloy is in a range of about 0.75 to about 1.25 percent by weight of the alloy.  
   
   
       36 . The method of  claim 29 , wherein the amount of chromium in the alloy is in a range of up to about 3.8 percent by weight of the alloy.  
   
   
       37 . The method of  claim 29 , wherein the amount of chromium in the alloy is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       38 . The method of  claim 29 , wherein the amount of iron in the alloy is in a range of up to about 1.0 percent by weight of the alloy.  
   
   
       39 . The method of  claim 29 , wherein the titanium material is a recycled titanium material.  
   
   
       40 . The method of  claim 29 , wherein the titanium material is a Ti-6Al-4V material.  
   
   
       41 . The method of  claim 29 , wherein the titanium material is a commercially pure titanium material.  
   
   
       42 . The method of  claim 41 , further comprising the step of combining aluminum with the titanium material, wherein the amount of aluminum in the alloy is in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       43 . The method of  claim 41 , further comprising the step of combining vanadium with the titanium material, wherein the amount of vanadium in the alloy is in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       44 . The method of  claim 29 , wherein the titanium material is a Ti-3Al-2,5V material.  
   
   
       45 . The method of  claim 44 , further comprising the step of combining aluminum with the titanium material, wherein the amount of aluminum in the alloy is in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       46 . The method of  claim 44 , further comprising the step of combining vanadium with the titanium material, wherein the amount of vanadium in the alloy is in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       47 . The method of  claim 29 , wherein the titanium material is scrap titanium material.  
   
   
       48 . The method of  claim 29 , wherein the titanium material comprises aluminum in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       49 . The method of  claim 29 , wherein the titanium material comprises vanadium in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       50 . The method of  claim 29 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       51 . The method of  claim 29 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent.  
   
   
       52 . A method of making a titanium alloy, comprising: 
 providing a titanium material comprising aluminum in a range of about 3.5 to about 6.25 percent by weight of the alloy, oxygen in a range of up to about 0.3 percent by weight and vanadium in a range of about 3.0 to about 4.5 percent by weight of the alloy;    combining the titanium material with manganese, such that the amount of manganese in the alloy is in a range of about 0.75 to about 2.0 percent by weight of the alloy, chromium, such that the amount of chromium in the alloy is in a range of up to about 3.8 percent by weight of the alloy, and iron, such that the amount of iron in the alloy is in a range of up to about 1.0 percent by weight of the alloy, wherein the combined amount of manganese, chromium, and iron in the alloy is in a range of about 1.0 to about 5.0 percent by weight of the alloy.    
   
   
       53 . The method of  claim 52 , wherein the combined amount of manganese, chromium, and iron in the alloy is in a range of about 2.0 to about 3.5 percent by weight of the alloy.  
   
   
       54 . The method of  claim 52 , wherein the amount of chromium in the alloy is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       55 . The method of  claim 52 , wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.  
   
   
       56 . The method of  claim 52 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       57 . The method of  claim 52 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent.  
   
   
       58 . A titanium alloy, comprising: 
 chromium, in a range of up to about 3.8 percent by weight of the alloy;    iron, in a range of up to about 1.0 percent by weight of the alloy;    manganese, in a range of about 0.75 to about 1.25 percent by weight of the alloy;    titanium, being present in a remaining amount;    wherein the combined amount of chromium, iron and manganese is in a range of about 1.0 to about 5.0 percent by weight of the alloy.    
   
   
       59 . The titanium alloy of  claim 58 , further comprising oxygen in a range of up to about 0.3 percent by weight of the alloy.  
   
   
       60 . The titanium alloy of  claim 58 , further comprising aluminum in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       61 . The titanium alloy of  claim 58 , further comprising vanadium in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       62 . The titanium alloy of  claim 58 , wherein the combined amount of chromium, manganese, and iron is in a range of about 2.0 to about 3.5 percent by weight of the alloy.  
   
   
       63 . The titanium alloy of  claim 58 , wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.  
   
   
       64 . The titanium alloy of  claim 58 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       65 . The titanium alloy of  claim 58 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent.  
   
   
       66 . An titanium alloy, comprising: 
 aluminum, in a range of about 3.5 to about 6.25 percent by weight of the alloy;    vanadium, in a range of about 3.0 to about 4.5 percent by weight of the alloy;    iron, in a range of up to about 1.0 percent by weight;    chromium, in a range of up to about 3.8 percent by weight of the alloy;    manganese, in a range of about 0.75 to about 2.0 percent by weight of the alloy; and    oxygen, in an range of up to about 0.3 percent by weight of the alloy; and    titanium, being present in a remaining amount;    wherein the combined amount of manganese, chromium and iron is in a range of about 1.0 to about 5.0 percent by weight of the alloy.    
   
   
       67 . The titanium alloy of  claim 66 , wherein the amount of chromium is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       68 . The titanium alloy of  claim 66  further comprising a pre-existing titanium material.  
   
   
       69 . The titanium alloy of  claim 68 , wherein the pre-existing titanium material is a recycled titanium material.  
   
   
       70 . The titanium alloy of  claim 66 , wherein the combined amount of manganese, chromium and iron is in a range of about 2.0 to about 3.5 percent by weight of the alloy.  
   
   
       71 . The titanium alloy of  claim 66 , wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.  
   
   
       72 . The titanium alloy of  claim 66 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       73 . The titanium alloy of  claim 66 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent.  
   
   
       74 . A titanium alloy, comprising: 
 aluminum, in a range of about 3.5 to about 6.25 percent by weight of the alloy;    vanadium, in a range of about 3.0 to about 4.5 percent by weight of the alloy;    chromium, in a range of up to about 3.8 percent by weight of the alloy;    manganese, in a range of up to about 2.0 percent by weight of the alloy;    iron, in a range of up to about 1.0 percent by weight of the alloy;    oxygen, in a range of more than about 0.2 percent to about 0.3 percent by weight of the alloy; and    titanium present in a remaining amount;    wherein, the combined amount of chromium, manganese and iron is in a range of about 2.0 to about 3.5 percent by weight of the alloy.    
   
   
       75 . The alloy of  claim 74 , wherein the amount of aluminum is in a range of about 5.0 to about 6.0 percent by weight of the alloy.  
   
   
       76 . The alloy of  claim 74 , wherein the amount of vanadium is in a range of about 3.3 to about 4.5 percent by weight of the alloy.  
   
   
       77 . The alloy of  claim 74 , wherein the amount of manganese is in a range of up to about 1.5 percent by weight of the alloy.  
   
   
       78 . The alloy of  claim 74 , wherein the amount of manganese is in a range of about 0.75 to about 1.25 percent by weight of the alloy.  
   
   
       79 . The alloy of  claim 74 , wherein the amount of chromium is in a range of about 1.0 to about 2.5 percent by weight of the alloy.  
   
   
       80 . The alloy of  claim 74 , wherein in an as-cast condition, the alloy has a yield strength of at least about 135,000 psi.  
   
   
       81 . The alloy of  claim 74 , wherein in an as-cast condition, the alloy has a percent elongation of at least about 5.0 percent by weight.  
   
   
       82 . The alloy of  claim 74 , wherein in an as-cast condition, the alloy has a tensile strength of at least about 155,000 psi.  
   
   
       83 . The alloy of  claim 74 , further comprising nitrogen in a range of up to about 0.05 percent by weight of the alloy.  
   
   
       84 . The alloy of  claim 83 , further comprising carbon in a range of up to about 0.1 percent by weight.  
   
   
       85 . The alloy of  claim 84 , further comprising other elements, wherein each said other element is present in a range of up to about 0.1 percent by weight of the alloy and the combined amount of said other elements is in a range of up to about 0.4 percent by weight of the alloy.  
   
   
       86 . A method of making a titanium alloy, comprising: 
 providing a titanium material;    combining the titanium material with manganese, such that the amount of manganese in the alloy is in a range of about 0.75 to about 1.25 percent by weight of the alloy, chromium, such that the amount of chromium in the alloy is in a range of up to about 3.8 percent by weight of the alloy, and iron, such that the amount of iron in the alloy is in a range of up to about 1.0 percent by weight of the alloy;    wherein the combined amount of chromium, manganese, and iron in the alloy is in a range of about 1.0 to about 5.0 percent by weight of the alloy.    
   
   
       87 . The method of  claim 86 , wherein the titanium material comprises aluminum in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       88 . The method of  claim 86 , wherein the titanium material comprises vanadium in a range of about 3.0 to about 4.5 percent by weight of the alloy.  
   
   
       89 . The method of  claim 86 , wherein the titanium material comprises commercially pure titanium.  
   
   
       90 . The method of  claim 89 , further comprising the step of combining aluminum with the titanium material, wherein the amount of aluminum in the alloy is in a range of about 3.5 to about 6.25 percent by weight of the alloy.  
   
   
       91 . The method of  claim 89 , further comprising the step of combining vanadium with the titanium material, wherein the amount of vanadium in the alloy is in a range of about 3.0 to about 4.5 percent by weight of the alloy.