Wiktionary
n. Any alloy of titanium and a metal or nonmetal
Wikipedia
Titanium alloys are metals that contain a mixture of titanium and other chemical elements. Such alloys have very high tensile strength and toughness (even at extreme temperatures). They are light in weight, have extraordinary corrosion resistance and the ability to withstand extreme temperatures. However, the high cost of both raw materials and processing limit their use to military applications, aircraft, spacecraft, medical devices, highly stressed components such as connecting rods on expensive sports cars and some premium sports equipment and consumer electronics.
Although "commercially pure" titanium has acceptable mechanical properties and has been used for orthopedic and dental implants, for most applications titanium is alloyed with small amounts of aluminium and vanadium, typically 6% and 4% respectively, by weight. This mixture has a solid solubility which varies dramatically with temperature, allowing it to undergo precipitation strengthening. This heat treatment process is carried out after the alloy has been worked into its final shape but before it is put to use, allowing much easier fabrication of a high-strength product.
Usage examples of "titanium alloy".
The smaller ones were composed of a construction-grade titanium alloy, and the larger ones—.
The walls were made of a titanium alloy with a tight molecular bonding, finished to look like wood.
The fin segment was analyzed and found to be a titanium alloy in an epoxy-resin honeycomb.
What had not been fully considered was that the metal was also exposed to intense nuclear radiation, and this particular titanium alloy was not completely stable under extended neutron bombardment.