What is Properties and Applications of Titanium Alloy Ti6Al4V
Hasad Foods, the agricultural investment arm of Qatar's sovereign wealth fund, said the government would increase its grain reserves from 250,000 tons to 300,000 tons in the near future, which is enough to feed the population for six months.
With a lot of deserts, Qatar suffers from water shortages, and Qatar depends on food imports for a long time. Recently, the ongoing tension in Ukraine has caused global food supply tension and rising prices.
In addition to that, the geopolitical situation also affects the supply and prices of many commodities like the Ti6Al4V alloy.
What is Titanium Alloy?
Titanium alloy Ti6Al4V is a medium-strength α-β type two-phase titanium alloy
containing 6% α-stabilizing element AI and 4% β-stabilizing element V. This
alloy has excellent comprehensive properties and has obtained the most extensive
applications in the aviation and aerospace industries.
The main properties and uses
Ti6Al4V titanium alloy is heated below 430 ℃ for a long time to form a very
thin and protective oxide film. As the heating temperature increases, the oxide
film thickens and its protection becomes poor. After the alloy was heated at 700
°C for 2 h, the oxide film thickness reached 25 μrn. Heating at temperatures
above 800°C forms a sparse oxide layer. After heating at 1000 °C for 1 h, the
thickness of the oxide layer reached 0.65 mm.
Ti6Al4V alloy can be welded by argon arc welding, spot welding, brazing,
electron beam welding and plasma welding. The strength of the welded joint is
basically the same as that of the base metal.
When Ti6Al4V titanium alloy parts are in contact with aluminum alloy and
structural steel parts, especially under certain corrosive medium conditions,
aluminum alloy and structural steel parts will suffer accelerated corrosion and
damage as the anode of the contact couple due to the negative electrode
potential. Therefore, between TC4 titanium alloy parts and aluminum alloy or
structural steel parts, protective measures such as padding and anti-corrosion
tape should be taken. TC4 alloy parts are strictly prohibited from contact with
parts or tools of lead, zinc, cadmium, tin, silver, bismuth and other
Before vacuum annealing, the oxide skin and oxygen-rich layer on the surface
of the parts should be removed, and the oil should be carefully removed before
entering the furnace. When vacuum annealing parts with complex shapes, fixtures
must be used to reduce the deformation of parts. Into the furnace parts are
preferably filled with pre-degassed titanium oxide-free chips to prevent
oxidation of the parts.
Ti6Al4V titanium alloy is now widely used in the manufacture of aero-engine
fans and compressor discs and blades, as well as various load-bearing beams,
frames, joints and fasteners in aircraft structures.
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According to the bank of Spain's latest forecast data, the average inflation is expected to hit 7.6% in 2022, but the average wage increase for workers in this country is expected to be less than 4% in 2022.
If the Bank of Spain's forecast comes true, the gap between price and wage growth in Spain in a single year will be the largest since 1984.
Prices in Spain rose 9.8% year on year in March 2022 and average wages rose 2.4% year on year, with the Bank of Spain forecasting that the country's inflation rate will improve from July.
Recent changes in the international situation have had a big impact on commodity and energy prices. How the prices of the Ti6Al4V alloy will develop in the future is still uncertain.