Search results
Results From The WOW.Com Content Network
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Titanium is used regularly in aviation for its resistance to corrosion and heat, and its high strength-to-weight ratio. Titanium alloys are generally stronger than aluminium alloys, while being lighter than steel. It has been used in the earliest Apollo Program and Project Mercury. [36]
The principle is that an object made of a harder material will scratch an object made of a softer material. When testing coatings, scratch hardness refers to the force necessary to cut through the film to the substrate. The most common test is Mohs scale, which is used in mineralogy. One tool to make this measurement is the sclerometer.
Studies of titanium alloys used in armors began in the 1950s at the Watertown Arsenal, which later became a part of the Army Research Laboratory. [ 2 ] [ 3 ] A 1948 graduate of MIT, Stanley Abkowitz (1927-2017) was a pioneer in the titanium industry and is credited for the invention of the Ti-6Al-4V during his time at the US Army’s Watertown ...
Like many other alloys, titanium gold alloys have a higher yield strength, tensile strength, hardness, and magnetism than either of its constituent metals. [ 4 ] In July 2016, researchers led by Emilia Morosan at Rice University discovered that a titanium-gold alloy, β-Ti 3 Au, is an intermetallic alloy that is up to 4 times harder than pure ...
Steel, stainless steels, hard cast irons, pearlitic malleable iron, titanium, titanium alloys, deep case-hardened steel, other materials harder than 100 HRB: 100: 500 D: HRD: 100: spheroconical diamond † Thin steel and medium case-hardened steel and pearlitic malleable iron: 100: 500 E: HRE: 100: 1 ⁄ 8 in (3.18 mm) ball
Archaeologists believe they may have discovered the final location of Noah’s Ark on Turkey’s Mount Ararat. Soil samples from atop the highest peaks in Turkey reveal human activity and marine ...
Titanium aluminide (chemical formula TiAl), commonly gamma titanium, is an intermetallic chemical compound. It is lightweight and resistant to oxidation [1] and heat, but has low ductility. The density of γ-TiAl is about 4.0 g/cm 3. It finds use in several applications including aircraft, jet engines, sporting equipment and automobiles.