Why does iron corrode, while titanium doesn't?

Iron corrodes destructively while titanium corrodes just on the surface. I think this is due to how the metal oxide remains attached to the rest of the metal. Iron oxide is very delicate, and can be easily brushed off. Once that happens, more iron oxide can form. Titanium on the other hand corrodes much slower than iron does which causes titanium oxide to remain attached to the surface of the metal, protecting it from further corrosion. The layer of titanium oxide may be as thin as 0.01 mm.

gud question.......frm wai i found on net titinium dioxide is actualy used for coating due to its properties but naturally corroded titinium in direct use i dnt knw wat to say... titinium dioxide is a naturally occurring oxide of the element titanium. Also referred to as titanium (IV) oxide or titania, this substance also occurs naturally as three mineral compounds known as anatase, brookite, and rutile. There are a number of industrial applications for this mineral. For one thing, it has very high refraction properties. Since titanium dioxide reflects light so well, it is ideal for use as a protective coating for many products, such as automobile parts and optical mirrors. It is also incorporated into paint. In fact, due to its refractive ability, it is a component of paints used to coat cars, boats, and airplanes. In addition, titanium dioxide is found in a number of construction and building materials. The plastic industry also makes use of titanium dioxide as a coating to absorb UV light and render increased durability. i knw its not the exact answer u r seeking but i dnt see the direct application of tituinium stuff used coz it will corrode later....... hope it helps........

This Site Might Help You. RE: Why does iron corrode, while titanium doesn't? Some facts I found on the net: TITANIUM: ----------------- *Density: 4.506 g/cm³ *Electronegativity: 1.54 (Pauling scale) *Atomic radius 147 pm *Covalent radius 160±8 pm *Crystal structure: hexagonal *Magnetic ordering: paramagnetic *Titanium reacts with air and water, passivly forming...

gud question.......frm wai i found on net titinium dioxide is actualy used for coating due to its properties but naturally corroded titinium in direct use i dnt knw wat to say... titinium dioxide is a naturally occurring oxide of the element titanium. Also referred to as titanium (IV) oxide or titania, this substance also occurs naturally as three mineral compounds known as anatase, brookite, and rutile. There are a number of industrial applications for this mineral. For one thing, it has very high refraction properties. Since titanium dioxide reflects light so well, it is ideal for use as a protective coating for many products, such as automobile parts and optical mirrors. It is also incorporated into paint. In fact, due to its refractive ability, it is a component of paints used to coat cars, boats, and airplanes. In addition, titanium dioxide is found in a number of construction and building materials. The plastic industry also makes use of titanium dioxide as a coating to absorb UV light and render increased durability. i knw its not the exact answer u r seeking but i dnt see the direct application of tituinium stuff used coz it will corrode later....... hope it helps........

Metals corrode the most. My d*ck does the second most.