Rolls Royce and EADS have announced a joint project to develop a hybrid electric commercial aircraft by 2050.
By Will Soutter
5 Jul 2013
Copper is relatively easy to mine and refine. It can be obtained from the ores cuprite, chalcocite, malachite, tenorite, covellite, and bornite. Today, the largest consumer of copper is in the building industry.
UNS C80100 is a high copper casting alloy. In casting, the metal is melted and poured into its final form such as a sculpture, faucet, knob, and handle. Casting methods such as centrifugal, sand, continuous, permanent mold, investment, and plaster are recommended for this alloy.
Aluminum bronze is an alloy, which consist of about 6% of nickel and iron and 9 to 12% of aluminum. UNS C95900 aluminum bronze copper alloy has good wear resistance and anti-galling properties.
Copper is a lot easier to alloy than most other metals. Its properties are strengthened and improved when alloyed to suit specific environments and applications. Lead is often added to copper alloys to enhance their machinability.
Titanium alloys are formed when titanium is combined with other alloying metals such as manganese, aluminum, zirconium, tin and molybdenum.
Grade 28 Ti-3Al-2.5V-0.1Ru alloy is a ruthenium-enhanced version of grade Ti-3Al-2.5V with similar physical and mechanical properties. Ruthenium provides this alloy with improved corrosion resistance.
Grade 21 Ti 15Mo 2.7Nb 3Al 0.25Si alloy has improved oxidation resistance and creep strength. This alloy is resistant to aircraft hydraulic fluids at all temperatures, thus it is ideal for use in aerospace engines and parts.
Titanium alloys are divided into alpha alloys, near-alpha alloys, alpha and beta alloys, and beta alloys. Grade Ti 15V 3Cr 3Al 3Sn alloy is a beta alloy that can be strip-rolled and heat-treated. It is highly formable, and has good room temperature bending properties.
Titanium alloys have many good attributes that allow their use in varied industries such as consumer electronics, aerospace, medical, marine, military, automobile, and sports equipment. Their key properties are excellent corrosion resistance, very high tensile strength, and durability.