Performance-adjustable low-cost titanium alloy

Abstract

The invention discloses a low-cost adjustable titanium alloy, which is characterized by the following: adding Al, Fe, Cr, Ni, S, B, C and Mo in the titanium with weight percentage of X+Y+Z+Ti at 100%(X=Al<=6%,Y=[(0.3<=Fe <=5%)+(0.1<=Cr<=2%)]<=7%,Z=[(Ni<=0.5%)+(S<=1%)+(B<= 0.5%)+(Mo<=0.8%)+(C<=0.5%)]<=3%); blending allocated alloy materials to form self-consumption electrode; fusing in the vacuum arc furnace twice; fixing one parameter of X, Y and Z and changing other two values to allocate the needed dynamic property of titanium alloy; adjusting delta b within 350Mpa-1250Mpa with delta at 5-30% and phi at 10-55%.

Description

technical field [0001] The invention relates to a titanium alloy, in particular to a low-cost titanium alloy which uses cheap alloying elements to replace precious elements. Background technique [0002] At present, most of the alloying elements in industrial titanium alloys use precious elements such as vanadium, molybdenum, niobium, zirconium, tin, and tantalum, which makes the manufacturing cost and use cost of titanium alloys remain high, which affects the promotion and application of titanium alloys. To this end, people began to explore ways to reduce the production cost and use cost of titanium alloys. The methods include: reducing the cost of raw materials by improving the production method of raw material-sponge titanium, using cheap alloying elements, simplifying the processing technology of titanium alloys, and optimizing titanium alloys. Various methods such as product processing technology. Among them, the Ti-SP alloy, Ti12LC and Ti8LC alloy developed by China N...

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Problems solved by technology

For this reason, many manufacturers and people of insight have carried out repeated research, but so far there is no better way to solve the above problems

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